coalern.运煤船;运煤铁路;煤商
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
Coalbedmethane煤层气
coal-burningadj.燃煤的
coal drop pipe落煤管
coal pyrolysis煤热分解
coal rake seam煤层
coal resources煤炭资源
coal infection喷煤
coal briquette煤砖,煤块
coal mill trip磨组跳闸
coalmine salty矿山安全