Ball's valve
[医] 鲍尔氏瓣, 莫尔加尼氏瓣
🧩 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
you used to be in the construction business.
你过去在建筑界工作。
Thank you for giving me an opportunity to speak about myself at this special occasion.
谢谢大家给我机会在这样一个特别的场合介绍我自己。
The fire service began to wonder whether a gas might have caused the fire.
消防部门开始怀疑有一种气体可能会导致火灾。