异辛烷

The results show that in the case of iso-octane direct injection at the latter stage of n-heptane high temperature heat release, the iso-octane mainly undergoes high temperature diffusive combustion with stable ignition and insensitiveness to the port injected n-heptane equivalence ratio.

当异辛烷在正庚烷低温反应之前喷入，发生预混合燃烧；当异辛烷在正庚烷HCCI燃烧负温度系数区和高温放热初期喷入，主要发生预混合燃烧；当异辛烷在正庚烷HCCI高温放热末期或结束后喷入，则主要发生扩散燃烧。

The results indicated that compared with AOT reversed micellar system, SEDSS reversed micellar system has higher extract ratio, no undissolved substance on the interface, and need not co-surfactant.

结果表明，该表面活性剂与异辛烷形成的体系具有反胶束的性质，与AOT/异辛烷体系相比，血红蛋白的提取率更高，且无界面膜状物产生。

Results showed that AOT reversed micellar systems provided a suitable micro-environment for biodiesel production. The optimal parameters were: the ratio of water and AOT 11, AOT concentration 50 mmol/L, temperature 40℃, pH 7, molar ratio of methano and oil 3, and rotating speed 180 r/min. The transesterification rate reached 90% when a 3-step methanolysis protocol was used.

研究结果表明： AOT/异辛烷反胶束体系为Candida sp.99-125脂肪酶催化提供了较为合适的微环境，在W0为11，表面活性剂浓度为50 mmol/L，温度为40℃，缓冲液pH值为7的AOT/异辛烷反胶束体系中，醇油摩尔比为3∶1，摇床转速为180 r/min，采用12h3次流加1 mol当量的甲醇，单批最高酯转化率可以达到90%。

Liquid-phase thermal desorption studies of five systems of n-paraffins adsorbed in MS-5A were conducted by tetralin as a thermal carrier.

本文分别通过对含正己烷、正庚烷、正辛烷、正庚烷+正辛烷以及含正己烷+正庚烷+异辛烷的5A分子筛在吸附惰性液体四氢萘中的热脱附实验，取得了这方面的实验数据。

In case of direct injection at the latter stage of n-heptane high temperature reaction or nearly after the high temperature reaction, diffusive combustion of iso-octane mainly occurs.

研究发现直喷异辛烷的燃烧模式与其喷入缸内时对应的预喷正庚烷HCCI放热的不同阶段有关，通过控制异辛烷直喷时刻可以实现其不同燃烧模式的调制。

Companies are producing various specifications heptane, n-heptane, iso-octane, n-hexane, and environmental protection-type special solvent oil, 120 # solvent oil, industrial products and reagents, welcome customers at home and abroad came to negotiate and buy.

公司现生产各种规格的庚烷、正庚烷、异辛烷、正已烷、环保型特种溶剂油、120#溶剂油等工业品和试剂，欢迎国内外客户前来洽谈、选购。

The addition of iso-octane extends the knocking limit in equivalence ratio somewhat, however the knock occurrence mainly depends on the total concentration of mixture. Although the operation range in equivalence ratio becomes narrow with the increasing of iso-octane, the maximum load is improved 80% by n-heptane/iso-octane controlled real-time in contrast with the HCCI fueled with n-heptane only.

结果表明：混合燃料HCCI着火以及燃烧相位主要取决于正庚烷实际的燃空当量比；异辛烷的加入对爆震当量比界限有所拓展，但HCCI爆震主要与混合燃料总当量比有关；随着辛烷值比例的提高，导致HCCI运行范围变窄，但是实时调控证明相对纯正庚烷，混合燃料的HCCI燃烧最大负荷提高了80%。

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。

The results indicated that at the low St/isooctane ratio, the amount of isooctane has influence on the hollow size of hollow polymer spheres.

从热力学与动力学的影响因素研究表明，在低苯乙烯／异辛烷比例的时候，异辛烷的用量影响空心部分体积和孔的大小；低的苯乙烯／异辛烷比例、不加入交联剂DVB利于空心结构的形成。3。

The results showed that, with increase of polymerization number , the activities of lipase in SEPESes/isooctane reversed micelles reached the maximum and then decreased. The lipase activity at optimal n (=2. 0) was 2. 2-fold of that in AOT/isooctane system.

结果表明，脂酶在SEPES／异辛烷反胶团中的活性随氧乙烯聚合数增大先增后降，在n=2.0左右达到最大，为AOT／异辛烷反胶团中的2.2倍。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷