Backflush valve
[化] 反冲阀
🧩 词语组成解析
回洗
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 hold on to them so there won't be a problem later.
你来保管， 免得等一下又出问题了。
I wonder how many girl friends he's got.
我不知道他有多少女朋友。
Look at those black clouds. It's going to rain.
看那成堆的乌云，要下雨啦！