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[Load Line] 载重线公约 栏杆斜撑

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发表于 2021-8-19 22:47 | 显示全部楼层 |阅读模式
对船员的保护
公约要求每3档设置一处斜撑,是对所有的栏杆而言?还是只针对干舷甲板和上建的栏杆?还是干脆只露天甲板有这个要求?有区域上的分别么?

讨论规范要求,不要回答什么-船东船检说怎样就怎样做,这样的回答没意义。
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龙船学院
发表于 2021-8-20 08:15 | 显示全部楼层
哪儿有斜撑一说啊,别逗
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发表于 2021-8-20 09:09 | 显示全部楼层
既然你知道规范的出处是公约,那你详细看25(2), 25(3)这两条就很清楚了。25(3)明确说了设置斜撑的适用范围是上建和干舷甲板,第一句话就是。
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 楼主| 发表于 2021-8-20 20:47 来自手机 | 显示全部楼层
huhuimin99 发表于 2021-08-20 08:15
哪儿有斜撑一说啊,别逗

您是来自哪个行业的朋友?

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发表于 2021-8-21 08:15 | 显示全部楼层
yprunnet 发表于 2021-8-20 09:09
既然你知道规范的出处是公约,那你详细看25(2), 25(3)这两条就很清楚了。25(3)明确说了设置斜撑的适用范围 ...

U r wrong。你看的哪个版本载重线公约?
1.纠正一下,superstructure 不是“上建”“上层建筑”。
2.斜撑是所有露天甲板栏杆都需要设置的。

---------------------------------------------------------
International Convention on Load Lines, 1966, as amended by the 1988 Protocol by res. MSC.143(77) in 2003


ANNEX I REGULATIONS FOR DETERMINING LOAD LINES
CHAPTER II CONDITIONS OF ASSIGNMENT OF FREEBOARD
Regulation 25 Protection of the crew
For ships constructed after 2005-01-01, registered in states which are parties to the 88 Protocol. See also IMO-Vega Note


(1)    The deckhouses used for the accommodation of the crew shall be constructed to an acceptable level of strength.
(2)    Guard rails or bulwarks shall be fitted around all exposed decks. The height of the bulwarks or guard rails shall be at least 1 m from the deck, provided that where this height would interfere with the normal operation of the ship, a lesser height may be approved, if the Administration is satisfied that adequate protection is provided.
(3)    Guard rails fitted on superstructure and freeboard decks shall have at least three courses. The opening below the lowest course of the guard rails shall not exceed 230 mm. The other courses shall be not more than 380 mm apart. In the case of ships with rounded gunwales the guard rail supports shall be placed on the flat of the deck. In other locations, guardrails with at least two courses shall be fitted. Guard rails shall comply with the following provisions:
(a)    fixed, removable or hinged stanchions shall be fitted about 1.5 m apart. Removable or hinged stanchions shall be capable of being locked in the upright position;
(b)    at least every third stanchion shall be supported by a bracket or stay;
(c)    where necessary for the normal operation of the ship, steel wire ropes may be accepted in lieu of guard rails. Wires shall be made taut by means of turnbuckles; and
(d)    where necessary for the normal operation of the ship, chains fitted between two fixed stanchions and/or bulwarks are acceptable in lieu of guard rails.
(4)    Satisfactory means for safe passage required by regulation 25-1 (in the form of guard rails, lifelines, gangways or underdeck passages, etc.) shall be provided for the protection of the crew in getting to and from their quarters, the machinery space and any other spaces used in the essential operation of the ship.
(5)    Deck cargo carried on any ship shall be so stowed that any opening which is in way of the cargo and which gives access to and from the crew's quarters, the machinery space and all other parts used in the essential operation of the ship can be closed and secured against water ingress. Protection for the crew in the form of guard rails or lifelines shall be provided above the deck cargo if there is no convenient passage on or below the deck of the ship.
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IACS Unified Interpretation LL47
(1979) (Rev.1 1980) (Rev.2 June 2006) (Rev.2.1 Oct 2006) (Corr.1 Oct 2007) (Rev.3 July 2008)
Guard Rails
A. Guard Rails (Regulation 25(2) and (3) of 1966 ICLL and the 1988 Protocol)
(also issued as LL.3/Circ.208 Annex 1 of 2012-05-31)
(Rev.1 also approved by IMO as an unified IMO interpretation, see LL.3/Circ.69 of 1985-01-31)
Interpretation:
(a)    Fixed, removable or hinged stanchions shall be fitted about 1.5 m apart.
(b)    At least every third stanchion shall be supported by a bracket or stay. In lieu of this, flat steel stanchions shall be of increased breadth as given in Figure 1, and aligned with member below deck unless the deck plating thickness exceeds 20 mm.
(c)    Wire ropes may only be accepted in lieu of guard rails in special circumstances and then only in limited lengths.
(d)    Lengths of chain may only be accepted in lieu if guard rails if they are fitted between two fixed stanchions and/or bulwarks.
(e)    The openings between courses should be in accordance with Regulation 25(3).
(f)     Wires shall be made taut by means of turnbuckles.
(g)     Removable or hinged stanchions shall be capable of being locked in the upright position.
UI47LLF1.png
B. Guard Rails ( Regulation 25(3)(b) of the 1988 Protocol to the ICLL 1966 as amended by resolution MSC.143(77))
(also issued as LL.3/Circ.208 Annex 2 of 2012-05-31)
Interpretation:
As alternate arrangements (required by Regulation 25(3)(b)), flat steel stanchions shall be of increased breadth as given in Figure 1, and aligned with member below deck unless the deck plating thickness exceeds 20 mm.
_____
Note:
1.    Rev.2 was withdrawn in Nov 2006, to remove ambiguity in referencing relevant regulations.
2.    Rev.2.1 of this UI is to be uniformly applied by IACS Societies to ships contracted for construction on or after 1 April 2007. However, Societies are not precluded from applying this UI before such date.
3.   The “contracted for construction” date means the date on which the contract to build the vessel is signed between the prospective owner and the shipbuilder. For further details regarding the date of “contract for construction”, refer to IACS Procedural Requirement (PR) No. 29.
*  *  *
(4)
IACS Unified Interpretation LL50
(1982) (Rev. 1 1986) (Rev. 2 1997) (Rev. 3 1998) (Rev. 4.1 October 1998) (Rev. 5 July 2008)
Protection of Crew (Load Line Convention Regulation 25(4), 26(2) and 27(7) and SOLAS II-1/3-3)
(original version of this interpretation also approved by IMO as an unified IMO interpretation, see LL.3/Circ.77 of 1986-10-13, and Rev.4.1 of this interpretation approved by IMO as an unified IMO interpretation, see LL.3/Circ.130 of 1999-06-15)
Interpretation:
When applying Regulation 25(4), 26(2) and 27(7) of the ICLL 1966, as well as Regulation II- 1/3-3 of SOLAS the protection of crew should be provided at least one of the means denoted in the table given below:

_____________
*   Oil Tankers, Chemical Tanker and Gas Carrier as defined in SOLAS II-1/2.12, VII/8.2 and VII/11.2 respectively
**  Af:  the minimum summer freeboard calculated as type A ship regardless of the type freeboard actually assigned.
     Hs:  the standard height of superstructure as defined in ICLL Regulation 33.
Note: Deviations from some or all of these requirements or alternative arrangements for such cases as ships with very high gangways (i.e. certain gas carriers) may be allowed subject to agreement case-by-case with the relevant flag Administration.
For oil tanker, as defined in SOLAS II-1/2.12, chemical tankers as defined in SOLAS VII/8.2 or gas carriers as defined in SOLAS VII/11.2, constructed before 1st July 1998, existing arrangements which complied with (b) or (c) may be accepted in lieu of (e) or (f) provided such existing arrangements are fitted with shelters and means of access to and from the deck as required for the arrangements (e) or (f) as defined below.
For tankers less than 100 m in length, the minimum width of the gangway platform or deck level walkway fitted in accordance with arrangement (e) or (f), respectively, may be reduced to 0.6 m.
Acceptable arrangements referred to in the table are defined as follows:
(a)  A well lighted and ventilated under-deck passageway (clear opening 0.8 m wide, 2.0 m high) as close as practicable to the freeboard deck, connecting and providing access to the locations in question.
(b)  A permanent and efficiently constructed gangway fitted at or above the level of the superstructure deck on or as near as practicable to the centre line of the ship, providing a continuous platform at least 0.6 m in width and a non-slip surface, with guard rails extending on each side throughout its length. Guard rails shall be at least 1 m high with courses as required in Load Line Regulation 25(3), and supported by stanchions spaced not more than 1.5 m; a foot-stop shall be provided.
(c)  A permanent walkway at least 0.6 m in width fitted at freeboard deck level consisting of two rows of guard rails with stanchions spaced not more than 3 m. The number of courses of rails and their spacing are to be as required by Regulation 25(3). On Type B ships, hatchway coamings not less than 0.6 m in height may be regarded as forming one side of the walkway, provided that between the hatchways two rows of guard rails are fitted.  
(d)  A 10 mm minimum diameter wire rope lifeline supported by stanchions about 10 m apart, or A single hand rail or wire rope attached to hatch coamings, continued and adequately supported between hatchways.
(e)  A permanent and efficiently constructed gangway fitted at or above the level of the superstructure deck on or as near as practicable to the centre line of the ship:
-       located so as not to hinder easy access across the working areas of the deck;
-       providing a continuous platform at least 1.0 m in width;
-       constructed of fire resistant and non-slip material;
-       fitted with guard rails extending on each side throughout its length; guard rails should be at least 1.0 m high with courses as required by Regulation 25(3) and supported by stanchions spaced not more than 1.5 m;
-       provided with a foot stop on each side;
-       having openings, with ladders where appropriate, to and from the deck. Openings should not be more than 40 m apart;
-       having shelters of substantial construction set in way of the gangway at intervals not exceeding 45 m if the length of the exposed deck to be traversed exceeds 70 m. Every such shelter should be capable of accommodating at least one person and be so constructed as to afford weather protection on the forward, port and starboard sides.
(f)  A permanent and efficiently constructed walkway fitted at freeboard deck level on or as near as practicable to the centre line of the ship having the same specifications as those for a permanent gangway listed in (e) except for foot-stops. On Type B ships (certified for the carriage of liquids in bulk), with a combined height of hatch coaming and fitted hatch cover of together not less than 1m in height the hatchway coamings may be regarded as forming one side of the walkway, provided that between the hatchways two rows of guard rails are fitted.
Alternative transverse locations for (c), (d) and (f) above, where appropriate:
(1)   At or near centre line of ship; or Fitted on hatchways at or near centre line of ship.
(2)   Fitted on each side of the ship.
(3)   Fitted on one side of the ship, provision being made for fitting on either side.
(4)   Fitted on one side only.
(5)   Fitted on each side of the hatchways as near to the centre line as practicable.
_____
Notes:
1.   In all cases where wire ropes are fitted, adequate devices are to be provided to ensure their tautness.
2.   Wire ropes may only be accepted in lieu of guard rails in special circumstances and then only in limited lengths.
3.   Lengths of chain may only be accepted in lieu of guard rails if fitted between two fixed stanchions.
4.   Where stanchions are fitted, every 3rd stanchion is to be supported by a bracket or stay.
5.   Removable or hinged stanchions shall be capable of being locked in the upright position.
6.   A means of passage over obstructions, if any, such as pipes or other fittings of a permanent nature, should be provided.
7.   Generally, the width of the gangway or deck-level walkway should not exceed 1.5 m.  
Footnotes:
1. This UI will be applied by all Members and Associates for ships that are subject to the referenced ICLL and SOLAS Regulations.
2. This UI is also applicable to Regulations 25(4), 26(2) and 27(8) of 1988 Protocol.



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 楼主| 发表于 2021-8-21 12:23 来自手机 | 显示全部楼层
sanshandaobojue 发表于 2021-08-21 08:15
U r wrong。你看的哪个版本载重线公约?
1.纠正一下,superstructure 不是“上建”“上层建筑”。
2.斜撑是所有露天甲板栏杆都需要设置的。

---------------------------------------------------------
International Convention on Load Lines, 1966, as amended by the 1988 Protocol by res. MSC.143(77) in 2003


ANNEX I REGULATIONS FOR DETERMINING LOAD LINES
CHAPTER II CONDITIONS OF ASSIGNMENT OF FREEBOARD
Regulation 25 Protection of the crew
For ships constructed after 2005-01-01, registered in states which are parties to the 88 Protocol. See also IMO-Vega Note

(1)&nbsp; &nbsp; The deckhouses used for the accommodation of the crew shall be constructed to an acceptable level of strength.
(2)&nbsp; &nbsp; Guard rails or bulwarks shall be fitted around all exposed decks. The height of the bulwarks or guard rails shall be at least 1 m from the deck, provided that where this height would interfere with the normal operation of the ship, a lesser height may be approved, if the Administration is satisfied that adequate protection is provided.
(3)&nbsp; &nbsp; Guard rails fitted on superstructure and freeboard decks shall have at least three courses. The opening below the lowest course of the guard rails shall not exceed 230 mm. The other courses shall be not more than 380 mm apart. In the case of ships with rounded gunwales the guard rail supports shall be placed on the flat of the deck. In other locations, guardrails with at least two courses shall be fitted. Guard rails shall comply with the following provisions:
(a)&nbsp; &nbsp; fixed, removable or hinged stanchions shall be fitted about 1.5 m apart. Removable or hinged stanchions shall be capable of being locked in the upright position;
(b)&nbsp; &nbsp; at least every third stanchion shall be supported by a bracket or stay;
(c)&nbsp; &nbsp; where necessary for the normal operation of the ship, steel wire ropes may be accepted in lieu of guard rails. Wires shall be made taut by means of turnbuckles; and
(d)&nbsp; &nbsp; where necessary for the normal operation of the ship, chains fitted between two fixed stanchions and/or bulwarks are acceptable in lieu of guard rails.
(4)&nbsp; &nbsp; Satisfactory means for safe passage required by regulation 25-1 (in the form of guard rails, lifelines, gangways or underdeck passages, etc.) shall be provided for the protection of the crew in getting to and from their quarters, the machinery space and any other spaces used in the essential operation of the ship.
(5)&nbsp; &nbsp; Deck cargo carried on any ship shall be so stowed that any opening which is in way of the cargo and which gives access to and from the crew's quarters, the machinery space and all other parts used in the essential operation of the ship can be closed and secured against water ingress. Protection for the crew in the form of guard rails or lifelines shall be provided above the deck cargo if there is no convenient passage on or below the deck of the ship.



IACS Unified Interpretation LL47
(1979) (Rev.1 1980) (Rev.2 June 2006) (Rev.2.1 Oct 2006) (Corr.1 Oct 2007) (Rev.3 July 2008)
Guard Rails A. Guard Rails (Regulation 25(2) and (3) of 1966 ICLL and the 1988 Protocol) (also issued as LL.3/Circ.208 Annex 1 of 2012-05-31) (Rev.1 also approved by IMO as an unified IMO interpretation, see LL.3/Circ.69 of 1985-01-31)Interpretation: (a)&nbsp; &nbsp; Fixed, removable or hinged stanchions shall be fitted about 1.5 m apart.(b)&nbsp; &nbsp; At least every third stanchion shall be supported by a bracket or stay. In lieu of this, flat steel stanchions shall be of increased breadth as given in Figure 1, and aligned with member below deck unless the deck plating thickness exceeds 20 mm.(c)&nbsp; &nbsp; Wire ropes may only be accepted in lieu of guard rails in special circumstances and then only in limited lengths.(d)&nbsp; &nbsp; Lengths of chain may only be accepted in lieu if guard rails if they are fitted between two fixed stanchions and/or bulwarks.(e)&nbsp; &nbsp; The openings between courses should be in accordance with Regulation 25(3).(f)&nbsp; &nbsp;&nbsp;&nbsp;Wires shall be made taut by means of turnbuckles.(g)&nbsp; &nbsp;&nbsp;&nbsp;Removable or hinged stanchions shall be capable of being locked in the upright position. B. Guard Rails ( Regulation 25(3)(b) of the 1988 Protocol to the ICLL 1966 as amended by resolution MSC.143(77)) (also issued as LL.3/Circ.208 Annex 2 of 2012-05-31) Interpretation: As alternate arrangements (required by Regulation 25(3)(b)), flat steel stanchions shall be of increased breadth as given in Figure 1, and aligned with member below deck unless the deck plating thickness exceeds 20 mm. _____
Note:1.&nbsp; &nbsp; Rev.2 was withdrawn in Nov 2006, to remove ambiguity in referencing relevant regulations.2.&nbsp; &nbsp; Rev.2.1 of this UI is to be uniformly applied by IACS Societies to ships contracted for construction on or after 1 April 2007. However, Societies are not precluded from applying this UI before such date.3.&nbsp; &nbsp;The “contracted for construction” date means the date on which the contract to build the vessel is signed between the prospective owner and the shipbuilder. For further details regarding the date of “contract for construction”, refer to IACS Procedural Requirement (PR) No. 29.*&nbsp;&nbsp;*&nbsp;&nbsp;*(4) IACS Unified Interpretation LL50 (1982) (Rev. 1 1986) (Rev. 2 1997) (Rev. 3 1998) (Rev. 4.1 October 1998) (Rev. 5 July 2008)
Protection of Crew (Load Line Convention Regulation 25(4), 26(2) and 27(7) and SOLAS II-1/3-3) (original version of this interpretation also approved by IMO as an unified IMO interpretation, see LL.3/Circ.77 of 1986-10-13, and Rev.4.1 of this interpretation approved by IMO as an unified IMO interpretation, see LL.3/Circ.130 of 1999-06-15) Interpretation: When applying Regulation 25(4), 26(2) and 27(7) of the ICLL 1966, as well as Regulation II- 1/3-3 of SOLAS the protection of crew should be provided at least one of the means denoted in the table given below:   
  _____________ *&nbsp; &nbsp;Oil Tankers, Chemical Tanker and Gas Carrier as defined in SOLAS II-1/2.12, VII/8.2 and VII/11.2 respectively **&nbsp;&nbsp;Af:&nbsp;&nbsp;the minimum summer freeboard calculated as type A ship regardless of the type freeboard actually assigned.  &nbsp; &nbsp;&nbsp;&nbsp;Hs:&nbsp;&nbsp;the standard height of superstructure as defined in ICLL Regulation 33.Note: Deviations from some or all of these requirements or alternative arrangements for such cases as ships with very high gangways (i.e. certain gas carriers) may be allowed subject to agreement case-by-case with the relevant flag Administration. For oil tanker, as defined in SOLAS II-1/2.12, chemical tankers as defined in SOLAS VII/8.2 or gas carriers as defined in SOLAS VII/11.2, constructed before 1st July 1998, existing arrangements which complied with (b) or (c) may be accepted in lieu of (e) or (f) provided such existing arrangements are fitted with shelters and means of access to and from the deck as required for the arrangements (e) or (f) as defined below. For tankers less than 100 m in length, the minimum width of the gangway platform or deck level walkway fitted in accordance with arrangement (e) or (f), respectively, may be reduced to 0.6 m. Acceptable arrangements referred to in the table are defined as follows: (a)&nbsp;&nbsp;A well lighted and ventilated under-deck passageway (clear opening 0.8 m wide, 2.0 m high) as close as practicable to the freeboard deck, connecting and providing access to the locations in question. (b)&nbsp;&nbsp;A permanent and efficiently constructed gangway fitted at or above the level of the superstructure deck on or as near as practicable to the centre line of the ship, providing a continuous platform at least 0.6 m in width and a non-slip surface, with guard rails extending on each side throughout its length. Guard rails shall be at least 1 m high with courses as required in Load Line Regulation 25(3), and supported by stanchions spaced not more than 1.5 m; a foot-stop shall be provided. (c)&nbsp;&nbsp;A permanent walkway at least 0.6 m in width fitted at freeboard deck level consisting of two rows of guard rails with stanchions spaced not more than 3 m. The number of courses of rails and their spacing are to be as required by Regulation 25(3). On Type B ships, hatchway coamings not less than 0.6 m in height may be regarded as forming one side of the walkway, provided that between the hatchways two rows of guard rails are fitted.&nbsp;&nbsp; (d)&nbsp;&nbsp;A 10 mm minimum diameter wire rope lifeline supported by stanchions about 10 m apart, or A single hand rail or wire rope attached to hatch coamings, continued and adequately supported between hatchways. (e)&nbsp;&nbsp;A permanent and efficiently constructed gangway fitted at or above the level of the superstructure deck on or as near as practicable to the centre line of the ship: -&nbsp; &nbsp;&nbsp; &nbsp; located so as not to hinder easy access across the working areas of the deck; -&nbsp; &nbsp;&nbsp; &nbsp; providing a continuous platform at least 1.0 m in width; -&nbsp; &nbsp;&nbsp; &nbsp; constructed of fire resistant and non-slip material; -&nbsp; &nbsp;&nbsp; &nbsp; fitted with guard rails extending on each side throughout its length; guard rails should be at least 1.0 m high with courses as required by Regulation 25(3) and supported by stanchions spaced not more than 1.5 m; -&nbsp; &nbsp;&nbsp; &nbsp; provided with a foot stop on each side; -&nbsp; &nbsp;&nbsp; &nbsp; having openings, with ladders where appropriate, to and from the deck. Openings should not be more than 40 m apart; -&nbsp; &nbsp;&nbsp; &nbsp; having shelters of substantial construction set in way of the gangway at intervals not exceeding 45 m if the length of the exposed deck to be traversed exceeds 70 m. Every such shelter should be capable of accommodating at least one person and be so constructed as to afford weather protection on the forward, port and starboard sides. (f)&nbsp;&nbsp;A permanent and efficiently constructed walkway fitted at freeboard deck level on or as near as practicable to the centre line of the ship having the same specifications as those for a permanent gangway listed in (e) except for foot-stops. On Type B ships (certified for the carriage of liquids in bulk), with a combined height of hatch coaming and fitted hatch cover of together not less than 1m in height the hatchway coamings may be regarded as forming one side of the walkway, provided that between the hatchways two rows of guard rails are fitted. Alternative transverse locations for (c), (d) and (f) above, where appropriate: (1)&nbsp; &nbsp;At or near centre line of ship; or Fitted on hatchways at or near centre line of ship. (2)&nbsp; &nbsp;Fitted on each side of the ship. (3)&nbsp; &nbsp;Fitted on one side of the ship, provision being made for fitting on either side. (4)&nbsp; &nbsp;Fitted on one side only. (5)&nbsp; &nbsp;Fitted on each side of the hatchways as near to the centre line as practicable. _____
Notes: 1.&nbsp; &nbsp;In all cases where wire ropes are fitted, adequate devices are to be provided to ensure their tautness.2.&nbsp; &nbsp;Wire ropes may only be accepted in lieu of guard rails in special circumstances and then only in limited lengths.3.&nbsp; &nbsp;Lengths of chain may only be accepted in lieu of guard rails if fitted between two fixed stanchions.4.&nbsp; &nbsp;Where stanchions are fitted, every 3rd stanchion is to be supported by a bracket or stay. 5.&nbsp; &nbsp;Removable or hinged stanchions shall be capable of being locked in the upright position.6.&nbsp; &nbsp;A means of passage over obstructions, if any, such as pipes or other fittings of a permanent nature, should be provided.7.&nbsp; &nbsp;Generally, the width of the gangway or deck-level walkway should not exceed 1.5 m.&nbsp;&nbsp;Footnotes: 1. This UI will be applied by all Members and Associates for ships that are subject to the referenced ICLL and SOLAS Regulations. 2. This UI is also applicable to Regulations 25(4), 26(2) and 27(8) of 1988 Protocol.

通读全文,貌似并没有说斜撑是针对露天栏杆的,反而觉得是针对所有栏杆的
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发表于 2021-8-22 17:15 来自手机 | 显示全部楼层
Emoryyyy 发表于 2021-8-21 12:23
通读全文,貌似并没有说斜撑是针对露天栏杆的,反而觉得是针对所有栏杆的


根据LL,所有露天甲板都需要设置栏杆,所有栏杆第3个立柱需要设置斜撑。那么是不是所有的露天甲板上栏杆,都需要斜撑呢?你再品一品。
至于船内部通道栏杆,不在讨论之列。
如果不设置斜撑,那么立柱扁铁就需要加大起到斜撑的作用。
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 楼主| 发表于 2021-8-23 22:42 来自手机 | 显示全部楼层
sanshandaobojue 发表于 2021-08-22 17:15
根据LL,所有露天甲板都需要设置栏杆,所有栏杆第3个立柱需要设置斜撑。那么是不是所有的露天甲板上栏杆,都需要斜撑呢?你再品一品。
至于船内部通道栏杆,不在讨论之列。
如果不设置斜撑,那么立柱扁铁就需要加大起到斜撑的作用。

4.   Where stanchions are fitted, every 3rd stanchion is to be supported by a bracket or stay.
加上这个注释4,一共有两处提到斜撑,但是都没有说是仅限露天甲板
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发表于 2021-8-24 06:40 来自手机 | 显示全部楼层
Emoryyyy 发表于 2021-8-23 22:42
4.   Where stanchions are fitted, every 3rd stanchion is to be supported by a bracket or stay.
加 ...

什么叫仅限露天甲板?LL要求露天甲板设置栏杆,栏杆第三个立柱设置斜撑。好好看看英文版,大标题小标题。如果还不明白,我也帮不了你了。
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发表于 2021-8-24 06:45 来自手机 | 显示全部楼层
Emoryyyy 发表于 2021-8-23 22:42
4.   Where stanchions are fitted, every 3rd stanchion is to be supported by a bracket or stay.
加 ...

你好好看看LL原文,(3)后面是冒号,然后是(4)我已经用红色字体标注出来了。
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发表于 2021-8-24 06:46 来自手机 | 显示全部楼层
Emoryyyy 发表于 2021-8-23 22:42
4.   Where stanchions are fitted, every 3rd stanchion is to be supported by a bracket or stay.
加 ...

你好好看看LL原文,(3)后面是冒号,然后是(b)我已经用红色字体标注出来了。
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发表于 2021-8-26 07:51 来自手机 | 显示全部楼层
看看学习下
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