船壳板、甲板等处必要的开孔应圆滑并进行加强。
Opening in the shell plating, deck plating etc. to be rounded and reinforced where necessary.
可以在船壳板、舱壁、甲板、墙壁等上开临时出入孔以便施工，应通过焊接对其进行适当的封闭并对其进行检验。
Temporary access openings may be provided on shells, bulkheads, decks, walls, etc. for convenience of works and to be closed in place by welding and inspected.
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