出水管的英文：
exhalent siphon
exhaust pipe
let-off pipe
outflow tube

参考例句：

Connect the cold water supply line and hot water outlet lines using elbows, nipples and unions as shown in the diagrams.
使用如图所示的弯管、螺纹接头、管道接头连接冷水进水管和热水出水管。

exhalent是什么意思：
n. 发散管

He exhaled a billow of cigar smoke.
他吐出一股雪茄烟。

He exhaled his smoke carefully.
他诚慌诚恐地喷出了一口烟。

Hold your breath for a moment and exhale.
屏住呼吸片刻，然后呼气。

siphon是什么意思：
n. 虹吸管
v. 通过虹吸管吸（或输送）

The water had to be siphoned off.
得把水抽出来。

The siphon is broken and the column flow ceases.
虹吸中断，柱的液流停止。

The excess could be siphoned off or removed with a pipette
过剩样品可以虹吸出或者用移液管将其除去。

exhaust是什么意思：
v. 排空；用完；使枯竭；详尽地论述
n. 排放；排气管；废气

It is not, of course, exhaustive
当然这是不够详尽的。

The exhaust gas exits through the other exhaust manifold
废气经另外一个排气歧管排出。

The purpose is not to give an exhaustive treatment.
其目的并不是给出全面彻底的处理。