bilgen.船底；舭部；船底污水；无聊的想法；废话v.（船）穿洞bilge arrangement舱底水排水系统bilge water alarm船漏警报器bilge compartment进水区间bilge pump plunger舱底泵推水柱bilge limber board污水沟盖板bilge water system污水系统bilge ballast pump船底压载水泵bilge and cantline骑缝堆货法bilge alarm system舱底进水警报系统bilge water damage船舱底水损