It belongs to the synthetical subject of river science, geomorphology and geology, it has its own particular, intact studying contents and its systematic and synthetical studying methods.
它属于河流学、地貌学、地质学的综合性学科，有其独特、完整的研究内容和系统、综合的研究方法。
It belongs to the synthetical subject of river science, geomorphology and geology, it has its own particular, intact studying contents and its systematic and synthetical studying methods.
它属于河流学、地貌学、地质学的综合性学科，有其独特、完整的研究内容和系统、综合的研究方法。
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