柯林斯词典petrochemical /ˌpɛtrəʊˈkɛmɪkəl/ (also petro-chemical) (petrochemicals) 1. N-COUNT Petrochemicals are chemicals that are obtained from petroleum or natural gas. 石油化工产品[usu pl] 返回 petrochemical剑桥词典any chemical substance obtained from petroleum or natural gas 石（油）化（学）制品 the petrochemical industry 石（油）化（学）工业 返回 petrochemical