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1·Different crudes have different base oil on properties.

原油不同，基础油性质也不同。

2·The distribution and composition of domestic acidic crudes were introduced.

介绍我国含酸原油的分布及组成；

3·The majority of recent desalting efforts have addressed heavy or opportunity crudes.

脱盐方面的研究重点是处理重质原油和机会油。

4·Hot fluid circulation in well will increase temperature level and improve crudes mobility.

热流体循环将提高井筒中的温度水平并改善原油的流动性。

5·Various crudes were tested for producing No. 3 jet fuel at Jiujiang General Petrochemical Works.

炼油厂对不同性质的原油进行了生产3号喷气燃料的工业试验。

6·The swept source laser provides light intensity strong enough to easily measure even the lowest API gravity crudes.

扫频激光光源提供了足量的光照强度，可以轻松测取低api度原油的参数。

7·Temperature distribution along the wellbore is of significant importance in producing highly viscous and waxy crudes.

沿井筒的温度分布对高粘度、高含蜡原油的生产具有很大的意义。

8·Actually, the processing route of high sulfur crudes is led to the processing scheme of atmospheric residuum or vacuum residue.

高硫含量原油加工路线的实质，主要是指常压渣油或减压渣油的加工方案。

9·The main properties of naphtha, diesel fuel fractions, catalytic cracking feed stock and residua from these crudes are also listed.

文中并列出了各种重质原油的汽油、柴油、催化裂化原料及渣油的主要性质。

10·The crudes were purified by silica gel chromatograph and the crude peptides were purified by recrystallization using EtOH and H_2O.

反应后得到的粗品用硅胶柱色谱纯化，粗品肽用乙醇和水重结晶。

(1)crude oil[化]原油

(1)crude protein粗蛋白；天然蛋白质

(1)crude drug天然药

(1)heavy crude重质原油

(1)crude fat粗脂肪

(1)crude fiber粗纤维