heavy petroleum oil

例句：

1. 1. The heavy petroleum oil is used in the production of lubricants and fuels.
   重质石油被用于生产润滑油和燃料。
2. 2.The heavy petroleum oil is a valuable resource that needs to be extracted and processed.
   重质石油是一种宝贵的资源，需要被提取和加工。
3. 3. Heavy petroleum oil is a source of energy for many industries, but it also poses environmental challenges.
   重质石油是许多行业的能量来源，但它也带来了环境挑战。