Relief valve unit
[化] 保险活门装置; 减压阀装置
🧩 词语组成解析
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;
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
How many languages do you speak?
你会讲几种语言？
That's why he is now concentrating on conversation at a language school near his home.
这就是他在他家附近的一所语言学校专攻口语的原因。
Let's take a look at your price list again.
我再看一次你们的价目表吧。