正丁烷是正链烷烃的一个例子。
链烷烃的柴油指数最高。
链烷烃的柴油指数最高。
将结构矩阵应用于链烷烃色谱保留指数的预测。
The structure matrix was applied to forecast chromatograph retention index of alkane.
利用极化效应指数,构造了链烷烃的有效碳链长度。
The effective length of carbon chain of alkanes was built up by using the polarizability effective index.
研究表明,链烷烃的许多物理化学性质与有效碳链长度成线性关系。
It concluded that there is a liner relation between the physical chemical properties of alkanes and effective length of carbon chain.
选用低含硫的廉价轻质油为原料,经加氢脱芳烃得到合格的链烷烃稀释剂。
A qualified alkane diluent was prepared by catalytic hydrogenation for aromatics saturation with low cost and low sulfur content light fraction as feedstock.
结果表明:利用链烷烃技术测定放牧动物的采食量和牧草的种类,具有较好的应用价值。
The results showed that assessing the quantity and the species of grass of grazing animal with alkane technology had preferable value in application.
随着演化程度加深,链烷烃脱甲基、环烷烃开环作用、芳构化作用和烷基化程度不断提高。
The degree of hydrocarbon evolution increases with depth, which is accompanied by demethylation of alkanes, ring opening of cycloalkanes, aromatization and heightening alkylating degree.
结果萃取物中挥发性成分较复杂,主要有芳香族、长链烷烃、生物碱类、香豆素和酯类等化合物。
RESULTS Volatile components from EtOAc extract were complex, mainly in aromatic, long-chain alkanes, alkaloids , coumarin and ester compounds.
利用程序升温氧化、差热分析、热重等方法考察了两种长链烷烃脱氢工业铂锡催化剂表面的积炭特征。
Carbon deposits on two Pt-Sn commercial catalysts for the dehydrogenation of paraffins have been studied by temperature programmed oxidation (TPO).
同石油原油相比,F-T合成粗油品主要由链烷烃和链烯烃组成,环烷烃和芳烃含量很少,且具有硫、氮等含量少的优点。
Compared with crude petroleum, F-T synthetic crude oil mainly has paraffin and alkene, containing few cycloparaffin and arene, with extremely low sulfur and nitrogen.
综述了微生物对链烷烃、环烷烃和芳香烃的降解途径、机理和降解动力学,分析了温度、营养物质、氧及盐度等非生物因素对降解作用的影响。
Biodegradation ways, mechanism and kinetics of alkanes, cyclanes and arenes are reviewed, and the influences of temperature, nutrients, oxygen and salinity on biodegradation are analyzed.
当“环”这个前缀出现时我们就知道这个烷烃的分子结构不同于普通链状烷烃,他是环装的,因此也有着更高的熔点。
That cyclo prefix means that unlike standard alkanes, which come in chains, this one's a ring. The shape gives cycloalkanes a higher melting point.
WD-40含有丰富的烷烃,他们都符合饱和烷烃的通式CxH2x+2,而且往往拥有长且曲折的碳链。
WD-40 contains an abundance of alkanes—hydrocarbons that match the formula CxH2x+2, usually in a long, zigzagging chain.
从煤分子结构出发,煤的反应性可以用芳香环,氢化芳香环,烷烃链、烷烃键和含氧官能团的变化来描述。
From molecule structure of coal, coal reaction character was described by aromatic ring, hydrogenation aromatic ring, alkane, alkane bond, oxy-group.
凝析油中不含胶质和沥青质,在轻质组分中(C<10)链状饱和烃含量为57%,环烷烃为35%。
There is no resin and asphaltene in the condensate, but 57% chain alkane and 35% cycloal-kane exist in light fraction ( C<10 ) .
构成硅烷烃的是一条硅原子链接形成的主链和以共价键链接在主链上的氢原子。
Silanes consist of a chain of silicon atoms covalently bound to hydrogen atoms.
苯环本身对低温氧化并不敏感,但当它取代进入烷烃链后,将增加链对低温氧化的响应。
The benzene ring itself is not susceptible to low-temperature oxidation, but its substitution into a paraffinic chain increases the response of the latter.
正构烷烃产业链,努力形成聚酯、聚酰胺、塑料、合成橡胶、精细化工等生产和深加工五大产业集群。
It is also dedicated to the development of five industrial clusters of production and deep-processing of polyester, polyamide, plastic, synthetic rubber and fine chemicals.
此类柴油流动改进剂的酯基侧链碳数分布和柴油的正构烷烃分布是影响其效果的主要因素。
It is indicated that the performance of the flow improver is influenced by the carbon distribution of the alkyl ester and then paraffin distribution of the diesel.
结果表明:蜡状芽孢杆菌和短短芽孢杆菌只对原油中高碳链的饱和烷烃具有生物降解作用;
The laboratory result indicates that HP and HT can only degrade saturated hydrocarbons with high carbon chain.
超支化聚合物的结晶能力由于长链端烷烃的有序排列而得到明显提高。
The improvement of crystallization properties can by realized by the ordered arrangement of long alkyl chains.
超支化聚合物的结晶能力由于长链端烷烃的有序排列而得到明显提高。
The improvement of crystallization properties can by realized by the ordered arrangement of long alkyl chains.
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