回采巷道 meaning in Chinese

extraction opening

Study on gateway support of 8 seam in kangjiatan mine
煤层回采巷道的支护优化
Application of anchor net supporting at actual tunnel
锚网支护技术在回采巷道中的应用
Experiment study of the bolting net steel support
回采巷道锚杆支护的研究
Study on floor heave course of extraction opening
回采巷道底臌过程研究
Stability analysis of the mining roadways with bolt supporting
锚杆支护在回采巷道中稳定性分析

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