n. 阀门；真空管；瓣膜（valve的复数）

n a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
n device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
n control consisting of a mechanical device for controlling the flow of a fluid
n the entire one-piece shell of a snail and certain other molluscs
n one of the paired hinged shells of certain molluscs and of brachiopods

valve的用法和样例：

例句

用作名词(n.)

The valve of the heart allows the blood to pass in one direction only.心脏的瓣膜使血液只能朝一个方向流动
We need a valve detector.我们需要个真空管检波器。
The pump sucks air out (of the vessel) through this valve.这台泵通过这个阀门把(容器中的)空气抽出。
We need an eye bolt to fit this valve.我们需要一个有眼螺栓来固定这个阀门。
Have you turned off the water valve?你关掉水阀了吗？
John Ambrose Fleming invents the two-element "Fleming Valve".约翰.
Valve actuators have not been correctly adjusted.电子管驱动器还没有正确调整。

词汇搭配

clack valve瓣阀
safety valve安全阀
outlet valve放出阀,出风阀,排气...
butterfly valve蝶形阀
valve spring气门弹簧
vent valve泄水阀,排气阀...
discharge valve排出阀,卸料阀...
throttle valve节流阀
relief valve安全阀
check valve止回阀
sleeve valve套阀,圆柱滑阀,筒阀...
expansion valve膨胀阀
valve seat阀座
ball valve浮球阀, 弹子阀...
vacuum valve真空管
escape valve放出阀
admission valve进气阀,进浆阀...
slide valve[机]滑阀
needle valve针形阀
exhaust valve排气阀

【近义词】

tap龙头
regulator调整者
controller控制者
stopcock水龙头
faucet水龙头
spigot栓
cock雄禽
outlet出路

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