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
Pleased to meet you.
很高兴遇见你 。
So I will receive and sign it overnight.
那么，我明天就可以收到并且签上名了。
He can't write very much on a card, Mum.
在明信片上他写不了很多，妈妈。