The debris flow disaster distribution takes on the more obvious region characteristic.
泥石流灾害分布具有较明显的地域特征。
This paper studies the level, distribution and characteristic of product quality in our country.
本文研究了我国产品质量水平、分布和特点。
This paper studies the level, distribution and characteristic of product quality in our country.
本文研究了我国产品质量水平、分布和特点。
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