石油起源 meaning in Chinese

oil genesis
oil origin
origin of mineral oil
petroleum origin

Standard specification for high fire - point mineral electrical insulating oils
石油起源高燃点电绝缘油的标准规范
The statement that oil originated in the sea is confirmed by a glance at a map showing the chief oilfield of the world ; very few of them are far distant from the oceans of today
如果瞧一瞧标明世界主要油田的地图，石油起源于海洋之说便可以得到证实，极少有油田是远离今天的海洋的。