Opening in the shell plating, deck plating etc. to be rounded and reinforced where necessary.

船壳板、甲板等处必要的开孔应圆滑并进行加强。

youdao

Opening in the shell plating, deck plating etc. to be rounded and reinforced where necessary.

船壳板、甲板等处必要的开孔应圆滑并进行加强。

youdao