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 is your language ability?
你的语言能力如何？
He knows enough that can live and hold his peace.
见多识广者沈默寡言。
Have you had any breakfast yet?
你吃过早餐了吗？