coal oil

名词 coal oil:

1. a flammable hydrocarbon oil used as fuel in lamps and heaters
   同义词：kerosene, kerosine, lamp oil

1. Coal, oil and mineral are the raw material of industry.
   煤、石油和矿产品都是工业原料。
2. Coal, oil and minerals are the raw materials of industry.
   煤、 石油和矿产品都是工业原料。