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。
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。
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。
The said catalyst can be used for hydrotreating process of fraction of petroleum, especially for hydrodesulphurization and hydrodenitrification process of middle distillate oil .
该催化剂可以广泛的用于石油馏分的加氢处理过程，特别适合于中间馏分油的加氢脱硫、加氢脱氮和加氢脱芳过程。
The property data of crude oil and its fraction is the basic data in design of petroleum refining technology. In the past these data were obtained by hand calculation or consulting tables and charts.
石油及其馏分的物性数据是石油炼制工艺设计的基础数据，以往常常采用手工计算或查阅有关图表获得。
Petroleum acid in the fraction oil is the main reason that the fraction oil processing equipment to corrode, fraction oil product operational perform(?) nce unqualified.
馏分油中的石油酸是造成馏分油加工设备腐蚀，馏分油产品使用性能不合格的主要原因。
The paper also points out, the ideal technology of petroleum naphthalene production is preparing 2,6 DMN from diesel fraction, a product of heavy oil contact cracking.
指出从重油接触裂解柴油馏分中制备2 ，6 -二甲基萘是石油萘生产的最理想的技术方向。
C5 fraction separation and comprehensive utilization is an important aspect of reasonable utilization of petroleum resource.
C_5馏分的分离与综合利用是合理利用石油资源的一个重要方面。
Dicyclopentadiene (DCPD) mostly comes from the C5 fraction of by-product which is produced in the process of preparation of ethylene by petroleum cracking and by-product of the coal-coking process.
双环戊二烯主要来自石油裂解制乙烯副产物的C5馏分和煤炭焦化副产物。
A large amount of C5 fraction is generated in the ethylene production process with petroleum hydrocarbon cracking.
在石油烃类裂解制取乙烯的过程中，有大量的C5馏分产生。
The petroleum ether fraction of the soft coral Sinularia sp. exhibited high lethal rate to brine shrimp and strong cytotoxin to KB and KBV200 cells.
短指软珊瑚的石油醚相显示较强的卤虫致死活性，并对KB和KBV200细胞显示了强的细胞毒活性。
In this system, the heavy fraction of petroleum has corrosion resistance for steel.
在该体系中石油重馏份对钢有缓蚀作用。
The further bioassays results suggested that the active constituents of F. vasculosa leaves existed in petroleum ether fraction and EtOAc fraction.
生物测定结果表明，白肉榕叶的活性成分主要存在于石油醚萃取物和乙酸乙酯萃取物中。
The chemical constituents of petroleum ether fraction, chloroform fraction and ethyl acetate fraction of Flemingia philippinensis Merr. et Rolfe. were analysed by modern chromatography.
应用现代色谱技术和方法研究了千斤拔的石油醚部位、氯仿部位、乙酸乙酯部位的了化学成分。
In the petroleum ether fraction, the amount of fatty acid methyl esters was about 68.42%.
在石油醚萃取部位中脂肪酸甲酯约占总量的68.42%。
Another part is about the separating from the Petroleum ether fraction of Selaginella uncinata (Desv. ) Spring.
另一部分是对瑶药翠云草石油醚萃取部位化学成分进行分离。
The property data of crude oil and its fraction is the basic data in design of petroleum refining technology.
阐述了当前国内外石油炼制催化剂器外再生技术的现状。
The property data of crude oil and its fraction is the basic data in design of petroleum refining technology.
阐述了当前国内外石油炼制催化剂器外再生技术的现状。
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