1.
nucleophile-assisted unimolecular electrophilic substitution
亲核体协助单分子亲电取代
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
3.
This thesis, through the change of the chemical shift values of aryl protons, predicts the directing effect of the substituenfs of aromatic systems and the strong and weak levels of aromatic etectrophilic substitution reachions.
通过苯环上芳氢化学位移的变化,判断苯环上取代基的定位效应及苯环亲电取代反应的强弱.
4.
Like the amino group, the phenolic group powerfully activates aromatic rings toward electrophilie substitution, and in essentially the same way.
对于亲电取代反应，酚基基本上以同氨基一样的方式使芳环强烈活化。
5.
Aromatic Nucleophilic Addition and Substitution Reaction of Electron-deficient Benzene;
缺电子苯环的亲核加成与亲核取代反应
6.
Amines can engage in nucleophile substitution reaction with alky.
胺能参加与卤代烷的亲核取代反应。
7.
Nucleophilic Aromatic Substitution. Strategies in the Synthesis of Multisubstituted Benzene Derivatives.
亲核性芳香取代。多取代苯衍生物合成的策略。
8.
Has the cinema lost out to TV?
电影已被电视取代了吗?
9.
Jim's father is afraid that he may lose out to larger firms.
吉姆的父亲担心他会被大的公司取代。
10.
bimolecular nucleophilic substitution with allylic rearrangement
含烯丙型重排双分子亲核取代
11.
Theoretical Study of Nucleophilic Substitution at Sulfur and Oxygen;
氧，硫原子上亲核取代反应的理论研究
12.
Father Knows Best premiered on NBC. Actor Robert Young based his character on his New York Life agent, Frank Nathan.
「老爸最知心」NBC电视台播映。罗伯特．扮演的主角取材自他的父亲、约人寿业务代表内森。
13.
This is the new masculinity, and it's as common today as the old masculinity of my father's day.
如今亲善的脸孔已取代了父亲那个时代严厉的脸孔。
14.
Synthesis of 3-Thienylmalonic Acid and Nucleophilic Reaction of Aryl Halides;
3-噻吩丙二酸的合成及卤代芳烃亲核取代反应
15.
The Study on Nucleophilic Substitution Reaction of Perchlorinated Fullerene Fragments;
全氯代富勒烯碎片的亲核取代反应初探
16.
Electric light has superseded gas light.
电灯已经取代了煤气灯。
17.
The gas lamp gradually lost ground to electric lighting.
电灯逐步取代了煤气灯.
18.
Electric lights have replaced candles.
电灯已经取代了蜡烛。