coalizev.加入联盟
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coalescence of eggs卵接合
coal crusher switch碎煤机开关
coal mill unit trip磨组跳闸
coal recovery ratio煤炭回收率
coal mass structure煤体结构
coalfaceenvironment工作面环境
coal - stagnating滞煤
coal-miner's lung重复跑
coal-lifting pump煤水泵
coal cleaning plant选煤厂