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石油馏分
1、petroleum engineer───石油工程师
2、whiting petroleum───白色石油
3、complex fraction───n.繁分数；n.[数]繁分数
4、petroleum───n.石油
5、petroleum coke───石油焦（炭）
6、petroleum resources───石油资源
7、petroleum engineering───石油钻采工程
8、fraction───n.分数；部分；小部分；稍微
9、petroleum industry───[油气]石油工业
1、wherein, the solvent oil of the step (1) comprises the petroleum fraction oil.───其中，步骤（1）所述溶剂油包括石油馏分油。
2、Coal, gas, or a petroleum fraction is mixed with air and injected into a boiler where combustion takes place.───煤、天然气、石油与空气混合注入到锅炉中进行燃烧。
3、Probably the most widely used medium is a high-boiling petroleum fraction, usually in the gas-oil range.───最广泛使用的介质可能一般采用瓦斯油沸程内的高沸点石油馏分。
4、The anti-hypoxia effects and the anti-oxidative action of the petroleum fraction were investigated by spectrophotometry, respectively.───采用紫外分光光度法研究其对抗氧自由基对红细胞的氧化作用。
5、A volatile fraction of petroleum consisting chiefly of pentanes and hexanes.───主要由戊烷和己烷组成的一种挥发性石油馏分。
6、Anti-Hypoxia and Anti-Oxidation Effect of Potentilla anserina L. Petroleum Fraction and Its Mechanism───蕨麻石油醚部位的抗缺氧及其初步机制研究
1、Probably the most widely used medium is a high-boiling petroleum fraction, usually in the gas-oil range.
2、CONCLUSION The Potentilla anserina L. petroleum fraction shows obvious anti-hypoxia and anti-oxidation effects, the effects may be related to its activity of inhibiting oxygen free radial.