Get Done With Mining Geological Works to Serve the Coalmine Production
做好矿井地质工作为煤矿生产服务
Application of Oil Industry Special Purposed Floating Hoop and Shoe on Coalmine Service Borehole Casing Lowering and Consolidation
石油专用浮箍浮鞋在煤矿服务钻孔下管和固井中的应用
Application of the Pile of Extruding Breakstone in the Waster Back-fill Foundation of Coalmine Subsidence Area
碎石挤密桩在煤矿塌陷区矸石回填地基中的应用
Performance Test for Coalmine Ventilating Fan by Using DF-3C Multichannel Anemoscope automatic radio wind wane and anemometer
浅析DF-3C多路风速仪对煤矿通风机的性能测试
399 rule in "Coalmine security rules" prescribes that difference between any rope load and average load should not over? 10%.
《煤矿安全规程》规定:摩擦提升装置中任一根提升钢丝绳的载荷与平均载荷之差不得超过±10%。
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