Pipeline valve actuator
[化] 管道阀驱动器
🧩 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. 开动者, 激励者, 致动器\\n[计] 传动装置, 驱动器, 激励器
🗣️ 情景例句
It took years of hard work.
那需要多年辛苦工作。
While we were having breakfast,John was talking on the telephone.
当我们正在吃早餐时，约翰正在打电话。
I ought to go home. I have to cook supper for my grandmother.
我该回家了。我得给奶奶做晚饭。