alkanes的例句大全

Oil & oil products and alkanes, alkenes & polymers.

石油 、 石油产品、烷烃 、 烯烃 以及 聚合物.

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Alkanes undergo reaction such as cracking, alkylation, oxidation, halogenation, nitration and so on.

烷烃能够发生裂解反应 、 烷基化反应 、 氧化反应 、 卤代反应、消化反应等.

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Advances in tungsten carbide alkanes isomerization catalysts, including their preparation and the isomerization mechanism, were reviewed.

综述了用于长链烷烃异构化的碳化钨催化剂的研究进展.

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A method for analysis n-alkanes, steranes and terpanes in oil by internal standard method was established.

采用内标法建立了原油中正构烷烃、生物标志物(甾 、 萜烷类)的分析方法.

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The properties and commercial application of LIP FCC catalyst for more iso-alkanes were described.

介绍了LIP系列多产异构烷烃催化剂的性能及工业应用情况.

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The alkanes are non-polar.

烷 是非 极性的.

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Other components are the homologous alkanes, ethane, propane, and higher hydrocarbons.

其他组分有同系烷 、 乙烷 、 丙烷和高分子碳氢化合物.

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Other components are the homologous alkanes, ethane, propane, higher hydrocarbons.

其他组分有同系烷 、 乙烷 、 丙烷以及高分子碳氢化合物.

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This fact shows that MTBE and ethanol retard the oxidation of alkanes.

这表明,在燃烧的起始阶段,MTBE、乙醇有抑制烷烃燃烧的作用.

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The gradation in the physical properties of the alkanes is typical of a homologous series.

烷烃物理性质的逐渐变化是同系列的特点.

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The alkanes are generally inert to ionic reagents.

烷烃一般说来对离子型试剂是不活泼的.

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Alkanes are resistant to attack by oxidizing agents generally.

烷烃一般对于氧化剂的作用是稳定的.

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The straight-chain alkanes exacerbate the problem of engine " knock ".

直链烷烃使机器的 “ 爆震 ” 问题更加严重.

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The general uses of alkanes may be divided into three categories.

烷的一般用途可分为三个方面.

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Methane and propane are alkanes.

甲烷和丙烷是烷烃。

《牛津高阶英汉双解词典》

The δ D values of the n-alkanes from Xifeng loess profile spanning the last 130 kyr show large variations for the past 130 kyr, ranging from-140 ‰ to-190 ‰. The Study on Relationship between the Distribution of N-alkanes, Pristane and Environment Change in JinChuan Peatland

黄土高原西峰黄土/古土壤剖面过去130kyr正构烷烃组分的平均氢同位素组成变化为-140‰～-190‰。金川泥炭地正烷烃和姥鲛烷分布特征与环境演变关系研究

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Conclusions: The alkanes substituted phenolshigher antioxidant activity than that of electron-withdrawing groups substituted phenols.

结论: 烷烃基类取代物易于抗氧化,卤代烃基或硝基类取代物抗氧化活性差.

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Judged from the abundance of organic matter, the gas chromatograms of n-alkanes, the interrelation of terpanes and the correlation of oil/ oil, the source beds are considered mainly to be argillaceous rocks interbedded with carbonatites.

从生油岩的有机质丰度、烷烃色谱特征和萜烷相关性等和原油对比结果表明，源岩主要为与碳酸盐岩呈互层的泥质岩。

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Relationship between Connectivity Index and Acentric Factor of Alkanes

烷烃的偏心因子与连接性指数的关系

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The leaf wax of N. affinis ( Rendle) Keng f. was rarely affected by soil contribution in buried conditions, so it can reflect the early diagenetic effects on leaf wax compositions and their n-alkanes carbon isotopic compositions under buried conditions.

慈竹叶蜡在埋藏条件下很少受土壤污染，能比较客观的反映叶蜡各成分及正构烷烃同位素组成在埋藏条件下的早期成岩效应。

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