Nonreturn valve
[机] 止回阀
🧩 词语组成解析
不返回的, 止逆的, 止回的
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
Don't forget to take lots of pictures.
别忘了照些照片。
My score is better than his.
我的纪录比他的棒！
That's international practice. We can't break it.
这是国际惯例，我们不能违背。