• 自然环境恶劣固然贫穷原因,而劳动力素质低下则落后贫穷的根源

    Though the adverse natural resources are the cause of poverty and backwardness, the low labor quality is the root.

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  • 本文论述了安塞油田主要特点是:低压、低产,自然环境恶劣,油田地工程建设难度

    Ansai oil field is characterized by low Permeability, low pressure, low output and adverse natural conditions, so surface engineering construction of Ansal oil field has great difficulty.

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  • 本文选择自然环境恶劣石漠化地区环境卫生作为研究对象,以求田野调查点上有所突破。

    In this paper, the author choice the karst rocky desertification areas as a research object, in the field investigation points to make some breakthroughs.

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  • 本文选择自然环境恶劣石漠化地区环境卫生作为研究对象,以求田野调查点上有所突破。

    In this paper, the author choice the karst rocky desertification areas as a research object, in the field investigation points to make some breakthroughs.

    youdao

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