Pneumatic positioner valve
[化] 气动阀门定位器
🧩 词语组成解析
[化] 定位器
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
from the first time you stayed with us.
自从你们第一次在我们这里住开始
No sooner said than done.
言而必行。
which is, in fact, much more complicated.
地震波的运动实际比这要复杂得多。