上机实践2:露天采场境界平面图
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视频引用自中国大学MOOC零基础教你用CAD绘制矿业工程图课程:https://www.icourse163.org/learn/KMYZ-1205805803?tid=1450344447#/learn/content?type=detail&id=1214629141&cid=1218491694&replay=true
视频引用自中国大学MOOC零基础教你用CAD绘制矿业工程图课程:https://www.icourse163.org/learn/KMYZ-1205805803?tid=1450344447#/learn/content?type=detail&id=1214629141&cid=1218491695&contentid=1214905369

