According to the material of field investigation and survey, tectonic erosion periods and their erosion are studied.
根据野外调查和实际测量资料，研究了黄土高原构造侵蚀期和期内造成的侵蚀。
According to the material of field investigation and survey, tectonic erosion periods and their erosion are studied.
根据野外调查和实际测量资料，研究了黄土高原构造侵蚀期和期内造成的侵蚀。
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