petroleum origin meaning in English

石油成因
石油起源
石油生成

Standard test method for carbon - type composition of insulating oils of petroleum origin
石油制绝缘油的碳类组分的标准试验方法
Standard test method for measurement of turbidity in mineral insulating oil of petroleum origin
源自石油的矿物绝缘油中混浊度测量的标准试验方法
Standard test method for stability of insulating oils of petroleum origin under electrical discharge
在电气放电情况下原油来源的绝缘油的稳定性的标准试验方法
Standard test method for visual examination of used electrical insulating oils of petroleum origin in the field
用过的石油制电绝缘油的现场目测检查的标准试验方法
Standard guide for sampling , test methods , and specifications for electrical insulating oils of petroleum origin
产自石油的电绝缘油的抽样试验方法和规范的的标准导则

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