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关于如何正确划分岩石风化程度等级的探讨 &_/%2qs
http://xueshu.baidu.com/usercenter/paper/show?paperid=ce1fd284859a5ab7552447ee3f1fb37b&site=xueshu_se 2, "q_d'V
https://www.docin.com/p-1109384279.html