矿井巷道支护设计的合理与否，直接影响着煤矿的采掘接续平衡、经济效益和生产安全。
The supporting design of mine roadways is reasonable or not directly influences mining-drifting balance, economic efficiency and safety production.
突出煤层煤巷掘进防突直接关系到煤矿的安全生产和采掘接替。
Outburst prevention technique of excavating in coal seam will be directly concerned colliery safety production and excavates taking over.
采掘进度计划对矿山建设和均衡生产具有指导作用。
Open pit mining production scheduling is of guidance significance to the mine construction and balanced production.
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