backwashing

回洗,反萃取,反流,倒流,反溅,反喷,逆流冲洗,反向洗涤

Backwash the swimming pool's filters regularly. 要定期冲洗游泳池的滤水器。

The backwash of the passing boat took us a surprise. 那艘经过的船造成的回浪让我们措手不及。

The backwash of the passing boat took us by surprise. 那艘经过的船所造成的回浪让我们措手不及。

Backwashing is one of the methods to maintain a filter bed clean. 反冲洗是保持滤床清洁的方法之一。

And after backwashing,the loss of biomass was as high as 90%. 反冲洗后生物量损失高达90%25;