narrow fraction
英 [ˈnærəʊ ˈfrækʃn]
美 [ˈnæroʊ ˈfrækʃn]
窄馏份
双语例句
- A volatile pressing oil HC-L200 was formulated with hydrotreated narrow fraction light base oil, fatty acid ester lubricant and additives, such as homemade wetting agent and compounded antirust agent.
根据铝翅片冲压加工工艺的技术特点，选用加氢精制窄馏分轻质油为基础油，添加特制的脂肪酸酯为油性剂以及自制的润湿剂和复合防锈剂等添加剂调合成HC-L200挥发性冲压油。 - The cut products from the molecular sieve unit could achieve the demands of narrow fraction, it could be used as base oils of high-grade aluminum cold-rolling oils by decreasing the aromatics content to a great extent through high-pressure hydrogenation.
分子筛装置产品经过切割，可以达到窄馏分要求，分子筛装置生成油经过高压加氢可以大幅度降低芳烃含量，用做高档铝轧制油基础油。 - Effect of reaction temperature on the product of aromatization reaction of FCC gasoline narrow fraction
反应温度对催化汽油窄馏分芳构化的研究 - Study on the thermal conversion reaction of narrow fraction of Liaohe FCC decant oil
辽河催化裂化澄清油中间馏分热反应研究 - Molecular model for super critical fluid extraction of narrow fraction in vacuum residua
重质油超临界流体萃取分离窄馏分的分子模型 - FCC decanted oils from processing Daqing, Saudi and Dagang heavy oils were separated into narrow fractions by vacuum distillation and Supercritical Fluid Extraction& Fraction ( SFEF).
采用减压蒸馏与超临界流体萃取分馏相结合的方法，将大庆、大港和沙特重油催化裂化分离出催化剂后的油浆切割成窄馏分。 - The change of physico-chemical properties of each narrow fraction obtained by SCFD from the two asphalts were studied by means of infrared spectrometry, elemental analysis and determination of mean molecular weight before and after thin film oven test.
借助薄膜烘箱试验、红外吸收光谱分析、元素分析和平均分子量测定，较细致地考察了两种沥青窄馏分薄膜烘箱试验前后化学组成、平均分子量及结构的变化。 - The hydrocarbon type composition of the narrow fraction and FCC gasoline were analysed by high resolution gas chromatography and the distribution rule of the PONA and the octane number of every narrow cut were obtained.
采用高分辩率气相色谱将各窄馏分及全馏分试样做单体烃组成分析，按馏分归纳出PONA族组成及辛烷值的分布规律。