• Arsenic pollution is becoming an more and more serious environmental and social problem. Now man-made pollution is the most severe.

    污染越来越成为一个严重环境问题社会问题目前最为严重正是人为的污染。

    youdao

  • With decrease of cropland and increase of population, food problem in our country is becoming more and more severe.

    随着耕地减少人口增加我国粮食问题日趋严峻

    youdao

  • With the increasing use of big power electronic equipments and the non-linear loads in power system, the power quality problem is becoming more and more severe.

    随着电力系统各种大型设备电力电子装置等非线性元件的应用越来越多电能质量问题日益严重。

    youdao

  • With the increasing use of big power electronic equipments and the non-linear loads in power system, the power quality problem is becoming more and more severe.

    随着电力系统各种大型设备电力电子装置等非线性元件的应用越来越多电能质量问题日益严重。

    youdao

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