本文主要对成都经济区近地表大气尘中主要的20种元素的空间分布特征进行研究。
The thesis mainly discusses space distribution character of 20 kinds of element of the air dust near the ground in Chengdu economic area.
本文主要对成都经济区近地表大气尘中主要的20种元素的空间分布特征进行研究。
The thesis mainly discusses space distribution character of 20 kinds of element of the air dust near the ground in Chengdu economic area.
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