However, precipitation in Malian river sub-watershed remains no change or drops weekly;

泾河流域马莲河分流域，年降雨量表现为不变或微弱下降；

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However, precipitation in Malian river sub-watershed remains no change or drops weekly;

泾河流域马莲河分流域，年降雨量表现为不变或微弱下降；

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