• 丁烷烷烃例子

    An example of a normal paraffin is normal butane.

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  • 烷烃柴油指数最高。

    Paraffins have high diesel indices .

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  • 烷烃柴油指数最高。

    Paraffins have high diesel indices.

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  • 结构矩阵应用链烷烃色谱保留指数预测

    The structure matrix was applied to forecast chromatograph retention index of alkane.

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  • 利用极化效应指数,构造了烷烃有效长度

    The effective length of carbon chain of alkanes was built up by using the polarizability effective index.

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  • 研究表明,烷烃许多物理化学性质有效长度线性关系

    It concluded that there is a liner relation between the physical chemical properties of alkanes and effective length of carbon chain.

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  • 选用低含硫的廉价轻质油原料,加氢脱芳烃得到合格链烷烃稀释剂。

    A qualified alkane diluent was prepared by catalytic hydrogenation for aromatics saturation with low cost and low sulfur content light fraction as feedstock.

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  • 结果表明利用烷烃技术测定放牧动物采食量牧草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.

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  • 随着演化程度加深,链烷烃甲基烷烃作用、构化作用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.

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  • 结果萃取物中挥发性成分复杂主要芳香族、烷烃生物碱类香豆素酯类等化合物

    RESULTS Volatile components from EtOAc extract were complex, mainly in aromatic, long-chain alkanes, alkaloids , coumarin and ester compounds.

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  • 利用程序升温氧化、差热分析、热重等方法考察了种长烷烃脱氢工业铂锡催化剂表面积炭特征。

    Carbon deposits on two Pt-Sn commercial catalysts for the dehydrogenation of paraffins have been studied by temperature programmed oxidation (TPO).

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  • 石油原油相比F-T合成油品主要烷烃烯烃组成,烷烃和芳烃含量很少,且具有等含量少的优点。

    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.

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  • 综述了微生物链烷烃烷烃芳香烃降解途径机理降解动力学分析温度营养物质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.

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  • 当“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烷烃,他环装,因此也有着更高熔点

    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.

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  • WD-40含有丰富烷烃,他们都符合饱和烷烃通式CxH2x+2,而且往往拥有曲折的碳

    WD-40 contains an abundance of alkanes—hydrocarbons that match the formula CxH2x+2, usually in a long, zigzagging chain.

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  • 分子结构出发,煤的反应性可以芳香氢化芳香环,烷烃烷烃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.

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  • 凝析油含胶质沥青质,轻质组分中(C<10饱和烃含量为57%,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 ) .

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  • 构成烷烃是一条硅原子接形成的主共价键接在主上的氢原子

    Silanes consist of a chain of silicon atoms covalently bound to hydrogen atoms.

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  • 苯环本身低温氧化并不敏感取代进入烷烃,将增加对低温氧化响应

    The benzene ring itself is not susceptible to low-temperature oxidation, but its substitution into a paraffinic chain increases the response of the latter.

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  • 正构烷烃产业努力形成聚酯聚酰胺塑料合成橡胶精细化工等生产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.

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  • 此类柴油流动改进剂基侧分布柴油的正烷烃分布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.

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  • 结果表明:蜡状芽孢杆菌短短芽孢杆菌原油中高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.

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  • 超支化聚合物结晶能力由于烷烃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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  • 超支化聚合物结晶能力由于烷烃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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