不同开采矿层数目深部磷矿体地下开采矿压活动规律的FLAC3D数值模拟研究
불동개채광층수목심부린광체지하개채광압활동규률적FLAC3D수치모의연구
FLAC3D numerical simulation on pressure movement laws of deep underground mining phosphate with different numbers of mining seam
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