石化 (shíhuà) means petrochemical, referring to chemical products derived from petroleum and natural gas. It is commonly used in discussions about the energy industry, manufacturing, and environmental policy.
他在一家大型石化企业工作了十多年。
Tā zài yī jiā dàxíng shíhuà qǐyè gōngzuò le shí duō nián.
He has worked at a large petrochemical company for more than ten years.
石化行业正在加快绿色转型的步伐。
Shíhuà hángyè zhèngzài jiākuài lǜsè zhuǎnxíng de bùfá.
The petrochemical industry is accelerating its pace of green transformation.
这个城市的经济主要依靠石化产业。
Zhège chéngshì de jīngjì zhǔyào yīkào shíhuà chǎnyè.
This city's economy mainly relies on the petrochemical industry.