relating to or denoting substances obtained by the refining and processing of petroleum or natural gas 石油化工的 a huge petrochemical works producing plastics. 生产塑料的大型石油化工厂。 ■of or relating to petrochemistry (与)石油化学(有关)的,(与)岩石化学(有关)的
noun
(一般作 petrochemicals)a chemical obtained from petroleum and natural gas 石油化学制品