1.
discharging valve
排出阀排气阀排水阀
2.
A hole or pipe in a wall to allow water to run off.
墙上排水孔，墙上排水管
3.
A drainage passage, as to a culvert.
排水沟排水通道，如阴沟
4.
The action or a method of draining.
排水排水的行动或方法
5.
flush gate
(水门等)排水装置
6.
Drainage: rainwater and sewage are discharged swimmingly.
排水：区内雨水、水均可顺畅排放。
7.
A pipe for carrying off water or sewage.
排水管排水或污水的管子
8.
Drainage : rainwater and sewage are discharged swimmingly.
排水：区内雨水、污水均可顺畅排放。
9.
Cubic content, volume, or displacement.
体积，容器，排水量
10.
cubic displacement
【船】排水量[吨位]
11.
discharge current
排出流排出流泻流排水流
12.
sprinkler drain valve
喷水灭火装置排水阀
13.
drainage capacity
排水系统的去水能力
14.
bilge pumping and draining system
舱底污水泵及排水系统
15.
drain pump overboard discharge valve
舱底水泵舷外排水阀
16.
Water escaped rapidly from the drainpipe.
水从排水管中迅速流出。
17.
felt the drain starting to suck.
感到排水管开始吸水
18.
off-shore sewage outfall
离岸入海的污水排水口