Therefore, finding a economical and effective pressure relief method to prevent rock burst became a important subject of mine disaster reduction.
因此需找一种经济有效的卸压方法以防治冲击地压就成为了矿山减灾工作的重要课题。
The results was used to prevent the rock burst in no. 12 coal mine of PingMei Group and the better social and economic benefits restrict was achieved.
上述结果在平煤十二矿三水平皮带下山防治冲击地压中应用，取得了良好的社会经济效益。
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