Selector valve
[化] 换向阀
🧩 词语组成解析
selector
[si'lektə]
n. 选择者，选择器;
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
When will she come back?
她什么时候会回来？
That fellow never pays his bills on time.
那个男人从没按时付过账。
She knew that it must be the baker.
她知道来了一定面包师。