Combination valve
[化] 复合阀
🧩 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;
🗣️ 情景例句
It is already.
现在已经很兴奋了
He phoned to cancel the meeting.
他打电话来取消会议。
Your prices seem a little high.
你们的价钱高了一些。