而当你又注水进水箱的时候，漫过箱顶的水就从这个溢水管溢出。

And, when you fill the tank again, water will reach the top of the tank and overflow through this vent pipe.

youdao

而当你又注水进水箱的时候，漫过箱顶的水就从这个溢水管溢出。

And, when you fill the tank again, water will reach the top of the tank and overflow through this vent pipe.

youdao