Reduction valve
[化] 减压阀
🧩 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 know how Dad is always talking about
知道爸爸时常谈起
There's a chance he won't be able to be home for Christmas.
他不能回家过圣诞节有偶然性。
To escape from the Earth in a rocket, one must travel at seven miles per second.
要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，