Relative to the traditional ordinary activated sludge method, the membrane bioreactor carry out separation of mud age and water stop time thoroughly by membrane interceptive role.
相对于传统普通活性污泥法，膜生物反应器由于膜的截留作用，实现污泥龄和水力停留时间的彻底分离。
"New two pipe method" is a new way to stop the water in deep foundation pit.
“新二管法”是一种新型的深基坑止水方法。
The seaming device and the labyrinth splicing method ensure the sealing performance of the water-stop belts; and the device has simple structure and low manufacturing cost.
本发明的接缝装置和迷宫式拼接方法，确保了止水带的密封性，结构简单，制作成本低。
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