coxite

例句：

1. 1. The coal tar is used to make inks and paints.
   煤焦油用于制作墨水和油漆。
2. 2. The pitch extracted from the coal was used as a fuel.
   从煤炭中提取的沥青被用作燃料。
3. 3. Coal tar is also used in the production of plastics.
   煤焦油还用于生产塑料。