The Relation between~ 1H-NME δ and Electrophilic Substitution Reaction of Aromatic Hydrocarbon

1、

Advances in Gas-Phase Electrophilic Aromatic Substitution Reaction

气相芳香亲电取代反应研究进展

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2、

Orientation Effect of the Methoxy on the Reaction of Electrophilic Aromatic Substitution

甲氧基在苯甲醚亲电取代反应的定位作用

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3、

Reactivity of electrophilic substitutions of different positions on phenanthrene are discussed according to the theory of Resonance, PMO method and EHMO method.

利用共振论、PMO法、EHMO法，对菲亲电取代反应各位点的活性进行了解释。

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4、

Predication of Reactive Sites in Electrophilic Substitution of Heterocycles and Mono Substituted Heterocycles by Condensed Fukui Function

Fukui函数在传统杂环及单取代杂环亲电取代反应中的活性部位预测

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5、

The chemical shift has a close relation with the reaction activeness: the smaller the δ_H value of the alpha position hydrogen in the compound, the higher the electricity substitution activeness.

分子的化学位移与反应活性有密切联系：化合物α位氢原子的δH值愈小，该化合物亲电取代反应活性愈高；

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6、

The rearrangement of allylic double bond took placed in the course of these reaction. 6& 12 are able to undergo a lot of electrophilic substitution reaction.

产物是双键经过重排的取代烯丙基二甲基甲氧基硅烷6&10，该产物可进行一系列亲电取代反应。

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7、

Studies on Use of NMR for the Aromatic Electrophilic Substitution Reaction

NMR在芳基亲电取代反应中的应用研究

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8、

Sincerely welcome the strength of our institutions and to participate in Nanchang, a city building.

真诚欢迎有实力的机构与我们一道参与南昌市的城市建设.

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9、

Step by step to reach Tianjin's Eco-city building requirements.

逐步达到天津市建设生态城市要求.

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10、

Kaizen , Poka Yoke, Layout Change or Process change will be notified to all concerned.

8相关的改善,解决缺陷的方法, 车间布局的改变或者是流程的改变必须通知到相关的部门.

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11、

More than 2 years experience in KAIZEN engineering in casting or machining equipment industry.

两年以上铸造或机加设备改善工作经验.

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12、

Additionally, another advantage of Lean Sigma is the combination of the Kaizen mechanism.

再者, 精益西格玛是各种改善方法的整合.

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13、

But, to regain competitiveness and balance the books , real wage adjustments are sometimes inevitable.

然而有些时候, 要重新获得竞争力并实现收支平衡, 调整实际工资是势在必行的.

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14、

Cutting one is an easy way to balance the books.

切割是一种简单的方法来平衡的书籍.

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15、

I should manage to square accounts with bank before the end of this month.

我应设法在月底前与银行结帐.

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16、

The mobile game is designed to fly far as possible to avoid dangerous obstacles.

这款手机游戏的目的就是飞的尽量远,避免危险的障碍物.

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17、

Then research and discuss the key technique of the mobile game development, including performance optimization.

然后,研究并探讨了移动开发的技术要点, 包括移动平台开发中的性能优化.

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18、

Reinforced by JAVA technology , an integrated multiplayer mobile game system was finished in this article.

本文运用JAVA语言, 设计开发了一套完整的多人移动游戏系统.

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19、

Aircraft artillery hit a mobile game, feeling very good!

一款大炮打飞机的手机游戏, 感觉很不错!

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20、

This is a barrier to switch more difficult puzzle mobile game!

切换关卡这是一款难度比较大的益智手机游戏!

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