• Methods A questionnaire survey and an on - site investigation of the present situation on disposal of house refuse and domestic sewage of rural areas in the country were carried out.

    方法农村生活污水垃圾排放量进行问卷调查现场调查。结果不同地区农村垃圾、污水排放量不同。

    youdao

  • Methods A questionnaire survey and an on - site investigation of the present situation on disposal of house refuse and domestic sewage of rural areas in the country were carried out.

    方法农村生活污水垃圾排放量进行问卷调查现场调查。结果不同地区农村垃圾、污水排放量不同。

    youdao

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