三通阀的英文：
tee valve
three-port valve
three-way valve
triple valve

connect with a tee, as of pipes.
三角管用t形物连起来。

Sir, this way to the next tee.
先生，从这一边到下个发球台。

The driving of a golf ball from the tee into the hole in only one stroke.
一杆击中一杆就把高尔夫球从球座击入洞中。

Valve Disadvantages: The valve is difficult to close and requires the operator to double close the valve.
阀门的缺点:阀门难以关闭，要求操作者二次关闭阀门。

pilot valve governor
带伺服电动机的调节器辅助调速器

The valve has jammed shut.
阀门给卡住了打不开。

three coat,three bake
“三涂三烘” 工艺(反复涂三道漆，烘干三次的施工方法)

fiveteen contains five and three.
15可被5和3除尽。

To draw three feet of water
吃水三尺