The active sludge method complete mixing type and stage aeration combination process possesses stronger anti-strike performance, higher removing ratio of organic compound etc.

活性污泥法完全混和式和阶段曝气组合工艺，具有抗冲击能力强，有机物去除率高等特点。

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A numerical method for the calculation of unsteady stator/rotor interaction in turbomachinery stage of arbitrary pitch ratio using time-inclined operator is presented.

本文介绍了用时间倾斜算子来处理非定常计算中非等栅距的方法。

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According to the characteristics of gate-controlled project of Erhe River flood diversion, Two-stage Calculation Method for water diversion ratio is put forward.

针对入海水道分洪枢纽有闸控制的特点，提出了分流比的两段计算法。

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