GB/T 25217.6-2019冲击地压测定、监测与防治方法第6部分:钻屑监测方法国家标准
英文:Methods for test, monitoring and prevention of rock burst—Part 6: Monitoring method of drilling bits GB/T 25217.6-201...
英文:Methods for test, monitoring and prevention of rock burst—Part 6: Monitoring method of drilling bits GB/T 25217.6-201...
英文:Determination of silicon,aluminum,iron,calcium,magnesium,sodium,potassium,phosphorus,titanium,manganese,strontium and...
英文:Determination of iron,calcium,magnesium,potassium,sodium,manganese,phosphorus,aluminum,titanium,strontium and barium ...
英文:Determination of arsenic in coal GB/T 3058-2019介绍: 国家标准《煤中砷的测定方法》由TC42(全国煤炭标准化技术委员会)归口上报,TC42SC1(全国煤炭标准化技术委员会煤炭检测分会)执...
英文:Guide for performance acceptance of determinator of coal ash fusibility GB/T 37769-2019介绍: 国家标准《煤灰熔融性测定仪性能验收导则》由TC42(...
英文:Methods for test, monitoring and prevention of rock burst—Part 10: Prevention method of drillhole destressing on coal...
英文:Methods for test, monitoring and prevention of rock burst—Part 7: Monitoring method of mining-induced stress GB/T 252...
英文:Methods for test, monitoring and prevention of rock burst—Part 11: Prevention method of destress blasting in coal sea...
英文:Classification for content of harmful elements in coal―Part 5:Fluorine GB/T 20475.5-2020介绍: 国家标准《煤中有害元素含量分级 第5部分:氟》由T...
英文:Methods for test, monitoring and prevention of rock burst—Part 9: Prevention method of water infusion on coal seam GB...