• The population control is in the sense of keeping simultaneously the quantity of population in a moderate size to enlarge the quality of population continuously.

    人口控制就是人口数量控制一个适度范围内,同时不断提高人口质量

    dict.cnki.net

  • The population control is in the sense of keeping simultaneously the quantity of population in a moderate size to enlarge the quality of population continuously.

    人口控制就是人口数量控制一个适度范围内,同时不断提高人口质量

    dict.cnki.net

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