相关单词近义词 pitman 矿工, collier 煤矿工人临近词coal oil, coal, coal-water slurry gasifier, coal-tar pitch slurry fuel, coal-bed methane reservoir, coal worker's pneumoconiosis, coalmine exploitation status, coal machining and transform, coal fried industrial boiler, coal gas of generating stove, coal mines safety management, Coal storage yard management相似词coal, coal black, coal bunker, coal mine, coal scuttle, coal tar, coal-fired, coalesce, 返回 coal miner