coal tar

名词 coal tar:

1. a tar formed from distillation of bituminous coal; coal tar can be further distilled to give various aromatic compounds

1. Any of several highly volatile, flammable liquid mixtures of hydrocarbons distilled from petroleum, coal tar, and natural gas and used as fuel, as solvents, and in making various chemicals.
   石脑油一种高度挥发性的易燃液态碳氢化合物混合物，从石油、煤焦油和天然气中提炼出来，并用作石油、溶剂和制造各种化合物中
2. Ammonia, coal tar and coke are all by-products obtained in the manufacture of coal gas.
   氨气、煤焦油、焦煤都是煤气生产过程中的副产品。