refined naphthalene

例句：

1. 1.The refinery produces refined naphthalene for the chemical industry.
   炼油厂生产精制萘供化工行业使用。
2. 2. The production of refined naphthalene is a major source of revenue for the company.
   精制萘的生产过程是公司的主要收入来源。
3. 3.The refinement process involves removing impurities from refined naphthalene to improve its quality.
   精制过程包括从精制萘中去除杂质以改善其质量。