fuel oil-gas tar

例句：

1. 1.The refinery produces a variety of fuel oils and gas tars for various industries.
   炼油厂为各种行业生产各种燃料油和气体焦油。
2. 2. The gas tar is used as a solvent in the chemical industry.
   气体焦油在化学工业中用作溶剂。
3. 3.The production process of fuel oil and gas tar involves complex chemical reactions.
   燃料油和气体焦油的生产涉及复杂的化学反应过程。