Sliding valve
[化] 滑阀
🧩 词语组成解析
a. 滑行的, 变化的\\n[机] 滑动
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
Crossing the Luohu border is a nightmare on holidays and weekends.
节日或者周未过后边毕业班检查站简直就是场恶梦。
I would like to place a person-to-person call.
我要打一个叫人电话。
What were their names?
他们叫什么？