Valve cylinder
[化] 阀筒
🧩 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
Is smoking allowed on the train?
火车上允许吸烟吗？
Who is the chief of sate of this nation?
谁是这国家的领袖？
He has many strange ideas in his mind.
他脑子里尽足奇思怪想。