Y-valve
[化] 角阀Z
🧩 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;
🗣️ 情景例句
I graduated from Nanjing University.
我从南京大学毕业的。
Could you ask her to give Doug a call when she gets back? She has my number.
她回来后，你能不能告诉她给道格挂个电话？她有我的电话号码。
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。