Clappet valve
[建] 止回阀
🧩 词语组成解析
[建] 止回阀
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
I can't hold a job down.
我不能老被拴在一个工作上。
How many boxes are you going to use?
你要用几盒？
But this phase of our development is now finished.
但这个发展阶段已经结束。