反应

[fǎn yìng]
  • 反应
  • 释义

    reaction;response;repercussion;feedback;reactivity ;

纠错 数据更新时间:2025-11-14 07:50:31
  • 近义词
  • 反义词

  • 反响repercussion;echo;reverberation;resounding;backwash ;
  • 反映reflect;reflex;report;make known;glass ;
  • 响应respond;answer;[物] [电] response;in answer to ;
  • 回响echo;resound;reverberate;reecho;resound with ;
  • 影响influence;affect;impact;effect;[电影]The Influence;
1、

The chloromethylation reaction consists of electrophilic substitution reaction and nucleophilic substitution reaction, the nucleophilic substitution is the rate-controlling step and the hydroxymethyl cation (+ CH20H) is the really effective electrophile.

氯甲基化反应由亲电取代反应和亲核取代反应组成,亲核取代反应是反应的速率控制步骤,羟甲基碳正离子(+CH2OH);是真正有效的亲电试剂。

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2、

Alkanes undergo reaction such as cracking, alkylation, oxidation, halogenation, nitration and so on.

烷烃能够发生裂解反应 、 烷基化反应 、 氧化反应 、 卤代反应、消化反应等.

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3、

Ozone is produced by the reaction between oxygen and ultra-violet light.

臭氧由氧气和紫外线发生反应而产生。

《柯林斯高阶英汉双解学习词典》

4、

In this paper, the recent progress of organic reactions in aqueous media, such as condensation reaction, nucleophilic substitution reaction, cycloaddition reactions, Barbier-type and multi-component reaction, and their applications are reviewed.

本文综述了近年来对水介质中的有机反应的研究成果,包括缩合反应、亲核加成反应、环加成反应、Barbier反应和多组分反应等,及其在有机合成中的应用研究进展。

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5、

The results are as follows,( 1) the effect of response-response compatibility was different in Arabic numerals and Chinese characters.

结果发现:(1)材料类型对反应反应相容性效应有影响,任务转换前阿拉伯数字材料存在反应反应相容性效应,汉字词材料不存在反应反应相容性效应;

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6、

The agency was heavily criticised for its tardy response to the hurricane.

该机构因对飓风反应迟缓,受到严厉批评。

《柯林斯高阶英汉双解学习词典》

7、

The research progress of four kinds of continuous emulsion polymerization reactors: continuous stirred tank reactor, continuous loop tubular reactor, pulsed packed column and Couette-Taylor vortex flow reactor were reviewed with 14 references.

介绍了4种主要连续乳液聚合反应器的研究新进展,包括连续搅拌釜式反应器、连续环管式反应器、脉冲填料塔式反应器及库爱特-泰勒旋流式反应器。

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8、

His instinct would be to seek a new accommodation with the nationalists.

他本能的反应会是寻求与民族主义者取得新的和解。

《柯林斯高阶英汉双解学习词典》

9、

Reggie reacted with the same affronted horror Midge had felt.

雷吉的反应是又羞愤又害怕,和米奇的感觉一样。

《柯林斯高阶英汉双解学习词典》

10、

The application of zeolite molecular sieves in fine organic synthesis, including condensation, esterification, oxidation, nucleophilic substitution and rearrangement, were reviewed.

综述了沸石分子筛在精细有机合成中的应用。详细介绍了沸石分子筛在缩合反应、酯化反应、氧化反应、亲核取代反应、重排反应中的应用进展。

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11、

Carol was absent-minded and a little slow on the uptake.

卡萝尔心不在焉,反应有点迟钝。

12、

The results indicated that n-heptane showed the two-stage auto-ignition, and heat release with low temperature reaction ( LTR) and high temperature reaction ( HTR), and heat release with HTR is consist of blue-flame reaction and hot flame reaction.

结果表明,正庚烷的燃烧过程由高温反应和低温反应两个阶段组成,高温反应阶段又可以分为蓝焰反应和热焰反应两个阶段。

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13、

There'dbe no telling how John would react to such news as this.

还不知道约翰听到这样的消息会作何反应

《柯林斯高阶英汉双解学习词典》

14、

To optimize the reaction conditions, temperature, ratio of raw materials, reaction solvent, catalyst and other factors were investigated.

并对合成路线中刘卡特反应的反应温度、物料配比、反应溶剂、反应催化剂等因素进行了考察,优化了反应条件。

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15、

His response to attacks on his work was chiefly bewilderment.

听到别人对自己工作的指责,他的反应主要是困惑。

《柯林斯高阶英汉双解学习词典》

16、

Our survey revealed that these allergies were mainly one-offs.

我们的调查显示这些过敏多为一次性反应

《柯林斯高阶英汉双解学习词典》

17、

Adolescent suicide is rarely an impulsive reaction to immediate distress.

青少年自杀很少是由于突然发生不幸而作出的冲动反应

《柯林斯高阶英汉双解学习词典》

18、

Jennifer responded with anger and played the martyr role.

珍妮弗做出愤怒的反应,开始大倒苦水。

《柯林斯高阶英汉双解学习词典》

19、

I'm depressed by the bovine enthusiasm of the crowd's response.

人群毫无热情的迟钝反应使我感到很沮丧。

《柯林斯高阶英汉双解学习词典》

20、

Consequently, the octane number of the gasoline will be increased at the same time. As a model reaction of the isomerization reactions and the cracking reactions of the FT oil, the n-C7H| 6 hydrogenation reaction is used to selectively control such kind of reactions.

正庚烷加氢反应作为FT油异构、裂解反应的模型反应,用此反应来选择性控制异对分子筛负载贵金属催化剂上正庚烷加氢异构的研究构化反应和裂解反应。

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21、

The oxidation reaction consists of nucleophilic substitution reaction and a-elimination reaction which is the rate-determining step.

氧化反应由亲核取代反应和α-消除反应组成,α-消除反应是反应的速率控制步骤。

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22、

By experiment, the effect of reaction time, reaction temperature and dosing ratio are studied. Preferred reaction conditions are determined: the suitable reaction temperature, reaction time and dosing ratio are refluence, 4 h, and 1:4 mol.

通过实验,考察了还原反应温度、反应时间和投料比对该反应的影响,确定了该反应的最适宜反应条件为:反应温度为回流温度,反应时间为4h,投料比为1:4。

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23、

Why were grown-ups always so stuffy and slow to recognize good ideas?

为什么成年人总是那么一本正经,对好点子反应那么迟缓呢?

《柯林斯高阶英汉双解学习词典》

24、

The use of heteropolyacids as the effective and green catalysts in Friedel-Crafts acylation and alkylation reactions is reviewed, and some other important organic reactions using heteropolyacids catalyst are also introduced, such as Diels-Alder reaction, esterification, condensation, rearrangement, bromination, oxygenation and asymmetry catalysis etc.

介绍了杂多酸催化剂在Friedel-Crafts酰基化和烷基化反应、Diels-Alder反应、酯化反应、环缩合反应、重排反应、溴化反应、氧化反应及不对称催化反应等有机合成反应中的应用。

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25、

This was a five-step process involving: diazo coupling reaction, chloridization, condensation, hydrolysis, condensation respectively.

这是一个五步反应,包括重氮化偶合反应、氯置换反应、缩合反应、水解反应、缩合反应。

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26、

Our instinctive reaction when someone causes us pain is to strike back.

当被别人弄疼时我们本能的反应是反击。

《柯林斯高阶英汉双解学习词典》

27、

The activation energy and rate constant of the allylation reaction was calculated in virtue of kinetic study. The kinetics study indicated that the allylation reaction of polyether was second order and its reaction mechanism was SN2 nucleophilic substitution.

进行了动力学研究,获得了反应活化能和各反应温度下的反应速率常数,同时研究结果表明烯丙基化反应级数为2,反应机理为SN2亲核取代反应。

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28、

The lift started off, juddered, and went out of action.

电梯开动了,接着剧烈震颤起来,然后就毫无反应了。

《柯林斯高阶英汉双解学习词典》

29、

There has been a very mixed reaction to the decision.

对于这个决定的反应非常不一致。

《柯林斯高阶英汉双解学习词典》

30、

For the methyl radical CH3 reaction with acetone, calculated two possible reaction channels, identified by calculating the hydrogen extraction reaction channel is the main reaction channel.

对于甲基自由基CH3与丙酮反应,计算了存在的两条可行的反应通道,通过计算确定了其中氢提取反应通道为主反应通道,另一条反应通道为次要反应通道。

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