Starting from the present research situation, endogenic and exogenic and gold regional metallogeny have been discussed.
从研究现状出发, 对内生、外生、区域成矿加以探讨.
The soil erosion is a complex geomorphological process caused by the endogenic and exogenic force.
水土流失是一个复杂的地貌过程,它受多种因素的影响.
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