高辛烷值的

During the reaction of alkylation, general contained 0.2%~2.0% butadiene will produce viscous heavy composite materials, which will raise final boiling point of alkylate and decrease octane, what is more, it will react with acid to produce corresponding ester, which will increase the consumption of acid, Therefore, we must remove butadiene by selective hydrogenation, at the same time, it will convert some of 1- butane to 2- butane by isomerization and raise octane of alkylate.

一般含有0.2%~2.0%的丁二烯，其在烷基化反应中，可生成一种分子量很高的粘稠重质迭合物，使烷基化油的干点升高，辛烷值降低，并且它还和酸反应生成相应的酯而加大酸耗量。因此必须经过选择性加氢除掉丁二烯，同时，将部分1-丁烯异构化为2-丁烯，以提高烷基化油的辛烷值。

High octane value, can significantly increase the mixed octane value of fuel and enhance antiknock performance

辛烷值高，能显著提高燃料的混合辛烷值，增强抗爆性能

The use of the butene is to rely mainly on mixing the butene and producing the petrol component of high hard alkane value, account for 60% of volume of consumption of butene, 11% mixed butene is used as industry or civil fuel.

丁烯的利用是以混合丁烯生产高辛烷值汽油组分为主，约占丁烯消费量的60%，另有11%的混合丁烯用作工业或民用燃料。

Used of gasoline; having a high octane number.

用来指汽油；有很高的辛烷值。

The burning speed of LPG is also lower than that of gasoline Otherwise, the original engine is designed for gasoline. It can't take advantage of the characteristics of LPG, such as high octane number and so on.

另外，原发动机是按照汽油的燃烧特性设计的，其参数不能充分发挥液化石油气的特点，如高辛烷值等。

My teaching style is usually high octane, with that and the early starts and the crippling heat, I was glad by the time the end was in sight.

我的教学风格通常是高辛烷值，并与早期开工和造成严重损害的热，我很高兴的时候，是结束的迹象。

It was found that more branch-2 olefin and C5~C6 isoparaffin molecules existed in MIP naphtha. The cause of MIP naphtha having higher octane number and less octane loss during hydrotreating could be explained by the octane model of C6 hydrocarbons quantitatively.

通过对MIP和FCC汽油组成分析，发现MIP汽油组成含有较多的多支链烯烃、异戊烷和异己烷，基于碳六烃的辛烷值模型，可以定量地解释MIP汽油辛烷值高和加氢MIP汽油辛烷值损失低的原因。

The effects of port injected n-heptane equivalence ratio and iso-octane direct injection timing are investigated experimentally and numerically. The results indicate that the combustion mode of iso-octane is dependant on the iso-octane direct injection timing corresponding to the stage of n-heptane HCCI combustion. In case of direct injection before the low temperature reaction of n-heptane, premixed combustion of the iso-octane occurs. In case of direct injection at the NTC period or the initial high temperature reaction stage of n-heptane, the iso-octane mainly undergoes premixed combustion.

进一步采用进气道预喷正庚烷，缸内直喷异辛烷，在没有火花点火和热EGR的辅助下利用预喷正庚烷HCCI燃烧产生活化热氛围的热作用和化学作用引燃缸内直喷高辛烷值燃料异辛烷，系统研究了不同预喷正庚烷当量比和缸内直喷时刻对直喷异辛烷燃烧模式、发动机效率和排放的影响，并用三维CFD耦合化学反应动力学对其燃烧过程进行数值模拟。

Here, for the first time, he tells the story of his lifelong obsession with football, in an honest and revealing book which captures the extraordinary camaraderie, the soul-destroying tensions and the high-octane thrills of the modern game as never before.

在这里，一时间，他的故事，他一生痴迷足球，在一个诚实和揭露书中网罗了非凡的情谊，灵魂-摧毁紧张和高辛烷值惊险刺激的现代游戏，是前所未有的。

The initial pressure has slighter influence on the ignition delay for the fuels with high cetane number compared with the high octane number fuels.

进气压力的变化对高十六烷值的燃料着火延迟期影响较小，但对辛烷值高的气体燃料着火延迟期有一定影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。