查询词典 reaction

The thermolysis electrocyclic reaction was affected significantly by the structuresof substrates, reaction temperature and time as well as Lewis acids and organic acids.

通过对反应物的结构、反应温度、反应时间、Lewis酸和质子酸的催化效果等诸多因素对该反应的影响进行探讨发现，在反应中使用1.1当量的三氟乙酸时，不仅反应时间可以缩短8-21小时，产率也可以提高20-30％。

The thermal decomposition mechanism and kinetic parameters of the decomposition reaction of CeDNS were investigated by means of TG/DSC and in situ condensed phase thermolysis/FTIR. The kinetic equation of decomposition reaction was obtained.

用TG和DSC以及变温固相原位反应池／傅立叶变换红外光谱联用技术研究了3，5-二硝基水杨酸铈的热分解机理，对主放热反应的DSC峰进行了数学处理，计算得到了动力学参数和动力学方程。

My parent objected , saying that the solar phoenix reaction in the sun would lead the dangerous life form on the third planet to develop a thermonuclear reaction of its own .

我的父母不同意，他们说第三行星上这些危险生物，将会研究太阳的凤凰反应，自己发展出热核反应。

Controlled thermonuclear fusion reaction is artificially controlled conditions, will a group of light elements in the nucleus in the high-temperature plasma state, bound by long enough to aggregate into the heavier nuclei of the nuclear reaction.

受控热核聚变反应是在人工控制的条件下，将一团轻元素的原子核在高温等离子体状态下约束足够长时间，聚合成较重原子核的核反应。

Produce the basic conditions for thermonuclear reaction, first nuclear fuel must be heated to a temperature high enough (several tens of millions of degrees), this time the nuclear fuel has been ionized into a mixture of electrons and ions, namely plasma; Second, we must binding them together so that they have conducted nuclear reaction time.

产生热核反应的基本条件，一是核燃料必须加热到足够高的温度，此时核燃料已被电离成电子和离子的混合体，即等离子体；二是要将它们约束起来使它们有进行核反应的时间。

Naphthalene acetyl chloride was prepared firstly by the reaction between α-naphthylacetic acid and SOCl2 in anhydrous benzene,then reacted with potassium thiocyanate to obtain α-naphthalene acetyl isosulfocyanate,as taking an addition reaction with p-chloro benzoyl hydrazine the novel compound N-naphthalene acetyl-N'-p-chloro benzoylamino thiocarbamide was finally synthesized.

通过α-萘乙酸和SOC l2在无水苯中反应制得α-萘乙酰氯，然后与硫氰酸钾反应生成α-萘乙酰基异硫氰酸酯，再与对氯苯甲酰肼进行加成反应，生成新型化合物N-萘乙酰基-N'-对氯苯甲酰氨基硫脲。

Naphthalene acetyl chloride was prepared firstly by the reaction betweenα-naphthylacetic acid and SOCl2 in anhydrous benzene, then reacted with potassium thiocyanate to obtainα-naphthalene acetyl isosulfocyanate, as taking an addition reaction with p-chloro benzoyl hydrazine the novel compound N-naphthalene acetyl-N'-p-chloro benzoylamino thiocarbamide was finally synthesized.

通过α-萘乙酸和SOCl2在无水苯中反应制得α-萘乙酰氯，然后与硫氰酸钾反应生成α-萘乙酸基异硫氰酸酯，再与对氯苯甲酰肼进行加成反应，生成新型化合物N-萘乙酰基－N'-对氯苯甲酰氨基硫脲。

Applications of thionyl chloride in pharmaceutical and pesticide sectors and application developments in organic synthesis reaction and ring formation reaction are introduced.

氯化亚砜又名亚硫酰二氯、氯氧化硫，是一种重要的无机精细化工产品，在医药、农药、染料、化工等行业及有机合成反应中具有广泛的应用。

We also tested the ligands in the asymmetric epoxide ring opening reaction with thiophenol, and as high as 67%ee was gained while using L7. 3. Studies on the reaction of α-hydroxyketone with nitroalkene.

此外我们还初步尝试了将配体应用于催化苯硫酚对环氧的不对称开环反应中，当使用甲基取代H8-BINOL衍生的配体L7时最高取得了67%ee的结果。

The optimum conditions such as acidity, reaction temperature, dosage of thoron Ⅱ solution and reaction time for the system were studied in detail.

详细考察了反应酸度、温度、钍试剂Ⅱ浓度及反应时间等对铬测定的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。