煤炭矿床 coal deposits
贮煤场 coal depot
采煤工 coal digger
煤钻 coal drill
煤炭干燥机 coal dryer
煤尘爆炸 coal dust explosion
煤尘试验 coal dust test
采煤工祖 coal face
煤的崩落 coal fall
浮游选煤 coal flotation
煤的分级 coal grading
煤质砂岩 coal grit
贮煤场 coal depot
采煤工 coal digger
煤钻 coal drill
煤炭干燥机 coal dryer
煤尘爆炸 coal dust explosion
煤尘试验 coal dust test
采煤工祖 coal face
煤的崩落 coal fall
浮游选煤 coal flotation
煤的分级 coal grading
煤质砂岩 coal grit
沿煤层巷道 coal heading
煤车 coal hutch
水力采煤 coal hydraulicking
煤炭工业 coal industry
煤装载 coal loading
煤损失 coal losses
磨煤机 coal mill
矿井火灾 coal mine fire
煤矿工人 coal miner
出煤量 coal output
刨煤镐 coal pick
煤堆 coal pile
刨煤机回采 coal ploughing
煤产量 coal production
煤的突出 coal projection
煤炭粉磨机 coal pulverizer
煤水泵 coal pump
冲唤截煤机 coal puncher
螺旋采煤机 coal recoverey drill
煤炭取样 coal sampling
选煤机 coal separator
煤的夹层 coal shed
铲煤机 coal shovel
煤质板岩 coal slate
手选工 coal sorter
煤炭列车 coal train
煤运输 coal transport
煤型 coal type
洗煤厂 coal washery
洗煤 coal washing