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
The age range is from 6 months to 47 years.
年龄档次从6个月到47岁不等。
Actions speak louder than words.
坐而言，不如起而行。
What are you doing?
你在干什么？