valve [vælv]

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单词级别

第6级

基本释义

n.阀，阀门，电子管

英英释义

a device which opens and closes to control the flow of liquids or gases , or a similar structure in the heart and the veins , which controls the flow of blood

参考例句

The exhaust valve on my car has burnt out. 我汽车上的排气阀烧掉了。
The connecting rod may drive a valve stem directly. 连杆可以直接带动阀门的把柄。

valve [vælv]

单词级别

基本释义

英英释义

参考例句

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