1.
The floor of a body of water, especially the sea.
底，海底水体，尤其是海洋的底部
2.
emergency bilge drain piping system
应急舱底水泄水管系
3.
bilge and ballast piping system
舱底水和压载水系统
4.
drain pump overboard discharge valve
舱底水泵舷外排水阀
5.
The solid surface under a body of water.
水底水下的固体表面
6.
bilge and ballast general service pump
舱底水和压载水通用泵
7.
an underwater mountain rising above the ocean floor.
水底下的高出海底的山。
8.
cried out we had sprung a Leak;
喊道：船底漏水了；
9.
bilge board
(船底)活水道盖板
10.
Invert Level I.L
渠底平水（俗名行水位）
11.
bilge pumping and draining system
舱底污水泵及排水系统
12.
The bottom of a body of water, such as a stream.
（河）床水域的底部，如河流的底部
13.
Tigris-Euphrates river system
底格里斯-幼发拉底河水系
14.
the sill of a window (the horizontal member at the bottom of the window frame).
窗户的底木（窗框底部的水平部分）。
15.
The sand in the water gravitated towards the bottom of the bottle.
水中的沙子沉到瓶底。
16.
ground bait
投入水底引鱼的诱饵
17.
drag, usually the bottom of a body of water.
通常指从水的底部拖拉。
18.
This pen will mark under water.
这支笔可在水底做标记