单词：valves
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
- 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
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