The article gives a systematic review of the adaptibility school, its theories and methodology.

本文系统地介绍了权变学派理论及其主要方法。

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This paper expounds the adaptibility of coarse sand filter with simultaneous air and water backwash to tertiary filtration plant.

阐述了粗石英砂气水同时冲洗滤池，在污水深度处理中的适用性。

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