Valve actuation
[机] 阀动
🧩 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;
n. 开动, 激励\\n[医] 激动, 感动
🗣️ 情景例句
You'll meet them.
你会见到他们的。
Oh well, better luck next time.
算了，下次的运气会更好。
Where did you learn to speak English?
你从哪里学会说英语的呢？