膜的清洗周期为5天左右，清洗后膜水通量恢复至膜初始水通量水平的90%以上。

The cleaning period was about 5 days, and the recovery was more than 90% after cleaning.

youdao

膜的清洗周期为5天左右，清洗后膜水通量恢复至膜初始水通量水平的90%以上。

The cleaning period was about 5 days, and the recovery was more than 90% after cleaning.

youdao