And the effects of ultrasonic irradiation at low intensity in BACMR on the enhancement of biological action and membrane pollution control were investigated through parallel experiments.

同时通过对比试验研究了低强度的超声波对膜污染防治作用及其在膜-生物活性炭反应器中对生物过程的强化作用。

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It is important to quantitatively characterize biological nitrogen fixation (BNF) of soybean for farmland fertilizer management and non-point source pollution control.

定量描述大豆生物固氮量对于施肥管理以及农业非点源污染控制具有十分重要的意义。

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In order to protect the public water system from chemical herbicides pollution, biological method has been suggested to control the growth and the reproduction of this weed.

为了避免化学除草剂对水体的污染，生物防治已成为当前水葫芦治理的重要方向。

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