查询词典 elasticity of substitution

The abnormal behaviour which happened in the nucleophilic substitution process of phenoxy propionic acid has been discovered. The mechanism has been proposed as an intramolecular nucleophilic substitution by neighboring group participation.

发现一系列芳氧丙酸化合物发生亲核取代反应的异常情况，推测可能是分子内邻基参与的亲核取代反应。

As a result, it shows that one/ones is the most frequently used group of substitution proform in English nominal substitution. They can substitute not only the whole noun phrase but also the crucial word in a noun phrase, emphasizing a general reference. Mastering all these usages can help to improve the concise power of expression as well as English comprehension .

重点论述了替代词one/ones的语义特征，对比研究了替代词one和指代词it、以及替代词one/ones与另一组替代词that/those的用法区分，研究表明，one/ones是英语名词性替代中最常见的一组替代词，它们既能替代整个名次词组又能替代名词词组中心词，强调泛指意义，掌握它们的各种用法有利于培养言简意赅的英语表达能力、提高英语阅读理解力。

It was also found base transversion had a extremely high ocurrence frequency in the single base substitution mutants when the plasmid was replicated in FL-FEN-1〓 cell or MNNG pretreated FL-FEN-1〓 cell, while in all mutants with multiple base substitution there were at least one transversion mutation taken place.

分析还发现，在FL-FEN-1〓细胞自发突变和非定标突变含有单碱基替换突变的突变子中，碱基颠换的发生率极高，而在FL-FEN-1〓细胞自发突变和非定标突变的多碱基替换突变子中，每个突变子均至少含有一个碱基颠换突变。

In which actors with nucleophiles known nucleophilic substitution reaction, and the role of electrophilic reagents are known as electrophilic substitution reaction.

其中与亲核试剂作用者称为亲核取代反应，与亲电试剂作用者称为亲电取代反应。

The reaction result showed that the reactivity of Grignard reagent was different in THF and diethyl ether when subjected to substitution reaction, which gave three products with different substitution degree.

研究表明，生成的Grignard试剂在THF和乙醚中的反应性不同，与甲基三硅烷或四乙氧基硅烷发生取代反应时生成不同取代度的产物，控制反应条件可得到以单取代、双取代或三取代硅烷为主的产物。

THIS RESTRICTION DOSE NOT APPLY WHEN SUBSTITUTION OF DOCUMENT IS NOT REQUIRED, HOWEVER A CONFIRMATION TO THIS EFFECT SHOULD BE SENT TO HABA BANK USA, N.A. BY TESTED TELEX/AUTHENTICATED SWIFT. 6 A COPY OF THE TRANSFER ADVICE CLEARLY INDICATING WHETHER SUBSTITUTION OF DOCUMENT BY FIRST BENEFICIARY IS REQUIRED OR NOT MUST ACCOMPANY ALL RELATIVE DRAWINGS.

这制约药量不申请，当没有需要文件的代替，然而应该送确认到这个作用到美国的HABA银行，N.A由测试的电传或被证实的快速 6 清楚地表明不论的调动忠告的拷贝由第一个受益人需要文件的代替必须伴随所有相对图画。

3If the elasticity of abatement incentive is high enough, this can stimulate the implementation of early abatement action fast.

3透过比较静态分析发现，排放权核配纳入先期奖诱因机制下，防制诱因弹性足够大，低未排放权的期望价值，抑或提高厂商防制的净边际效，促进厂商增加防制与减少排放之诱因，达到激厂商即早减的效果。

The knowledge of aerodynamics and elasticity is involved in this system.

该系统包含了流体力学和弹性力学两个领域的知识。

This research studies the changes of different skin elasticity on various ages, based on 130 Taiwan female , age from 5 – 59, every 10 ages for one age-group, total in 6 age-group.

本研究的方法是以130位台湾健康女性，5~59岁，每10岁一个年龄层区分，区分为六种年龄层区间( 5~9岁、10~19岁、20~29岁、30~39岁、40~49岁、50~59岁)，来探讨不同年龄层皮肤弹性变化。

With Airy stress function, a plane elasticity problem can be simplified to solve a biharmonic function equation.

通过引入Airy应力函数，平面问题可以归结为在给定的边界条件下求解一个双调和方程。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48