初次: the first time成: accomplish; succeed油: oil; fat; grease期: designated time初次成形加工: primary metalworking为商业上初次成功而飘飘然: giddy with their first business success初次: the first time 初次出场 make one's bow; 初次登台 appear for the first time on the stage; make one's debut; 初次见面 see sb. for the first time产油期: productive life换油期: oil draining period成油气: olefiant gas分成油: allocable profit oil; allocable remainder oil; allocableremainderoil; shared oil合成油: artificial oil; cogasin; ctl; gtl; syncrude; synthetic oil混成油: finished blend留成油: share oil次成谷: subsequent valley次成团: subclustering换油期限: drain intervals汽油期货: gasoline futures水洗采油期: flushed production period无水采油期: water-free oil production period原油期货: crude oil futures; forward crude oil主生油期: ppof; principal phase of oil formation成油气（乙烯: ethylene固定留成油: fixed conservation oil海藻成油说: seaweed theory
