petroleum gas石油气,石油气体
petroleumn.石油
petroleum microbe石油微生物
petroleum furnace石油炉
petroleum complex石油联合企业
petroleum naphtha石脑油
petroleum gas oil石油气体油
petroleum deposit石油矿床
petroleum pudding润滑油固化用皂
Petroleum sources油源
petroleum ceresin石油地蜡
petroleum carrier石油船