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're welcome.
别客气，欢迎你再来。
I get out of bed about 7 o'clock every morning.
我大约每天早上7点钟起床。
Mine are red, and they're much bigger!
我的是红的，并且比你的大得多！