GB/T 25217.12-2019冲击地压测定、监测与防治方法第12部分:开采保护层防治方法国家标准
英文:Methods for test, monitoring and prevention of rock burst—Part 12: Prevention method of protective seam mining GB/T 2...
英文:Methods for test, monitoring and prevention of rock burst—Part 12: Prevention method of protective seam mining GB/T 2...