Piston valve
[机] 活塞阀
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
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
How do you stay so young-looking?
你怎样保持如此年轻的？
I am Lao Haoren, executive manager of the sales department of Stone International.
我叫劳浩仁，“世通国际”的销售部经理。
Strong players, but a weak team.
好球员，弱球队。