查询词典 reaction

By the medium of experiment and research to alkali-aggregate reaction of Shan XI Face Concrete,We discussed respectively from total alkali in concrete, alkali reactiveness of aggregate and damp environment that alkali-aggregate reaction may be damaged.

提要：本文通过珊溪面板混凝土碱骨料反应的试验研究，分别从混凝土总碱量，骨料的碱活性及发生碱骨料反应破坏的潮湿环境进行了论述，认为珊溪面板混凝土是安全的，不会发生碱骨料破坏。

As there is a change in oxidation number during the reaction, it is a redox reaction.

由於反应前后出现氧化数的变化，因此以上反应亦属氧化还原反应

According to the theoretical basis of thermokinetics, the thermokinetic reduced parameter equation of opposing reaction has been derived, and the mathematical models of the reduced parameter method for opposing reaction have been established.

根据热动力学基本理论，推导了对峙反应的热动力学对比参量方程，建立了对峙反应对比参量法的数学模型。

Reaction at the phosphorus furnace reducing agent on the one hand the reaction, the other played the role of conductivity.

还原剂在磷炉反应中一方面参与反应，另一方面是起到导电的作用。

The effects of molar ratio of linoleic acid and ethanol, temperature , and amount of ionic liquid on esterification reaction were studied and the optimal reaction conditions were obtained, that is, n :n = 4:1 , at refluence temperature, with the amount of ionic liquid equaling 42wt.

研究了环境友好的BF4离子液体催化亚油酸等高碳脂肪酸与无水乙醇酯化反应，考察了亚油酸与乙醇的摩尔比、反应温度、离子液体用量等条件对亚油酸酯化反应结果的影响，优化了反应的工艺条件。

In the arylation reaction, the temperature was meliorated from -40℃ to -15℃, which could be easy controlled with ice-salt bath. Furthermore, the reaction could be carried out reposefully by adding the initiator.

其中在以2，5-二氟溴苯格氏试剂进行芳基化反应时，改进了反应条件，克服了文献使用的低温条件(-40℃)，简便了操作，同时通过加入合适的引发剂，使反应能够平稳进行。

Glycine wasn't a repressible substrate for the reaction catalyzed by SHMT. The effect of concentration of glycine on reaction rate was consistent with M-M Equation. Under the conditions used in this research, V〓 was 0.212mmol/L/min and K〓 was 0.0198mol/L.

甘氨酸对丝氨酸羟甲基转移酶催化的合成反应无底物抑制作用，且甘氨酸浓度对酶反应速度的影响服从米氏方程的形式，实验条件下V〓为0.212mmol／L／min，K〓为0.0198mol／L。

The recycle times and reproductive capability of catalyst, reaction temperature, reaction time, amount of catalyst, molar ratio of mixture have been investigated.

强酸性阳离子交换树脂催化制备醋酸正丙酯适宜的条件为：反应时间为2h，催化剂用量为15%，沸腾状态反应，酸醇摩尔比为1：1。

Since aromatic ring is a very stable compound, it would needs very high activation energy to begin the ring opening reaction. It is therefore interesting to investigate how the micro-organism can catalyze this reaction in room temperature at natural buffer condition.

由於芳香环是一种非常稳定的化学结构，如果想要进行开环反应必要要经过极大的活化能，而了解生物体中是如何在常温的环境下进行这样的反应将会是非常有趣的题材。

The optimal technology was got by the mathematical model-""Quadratic Orthogonal Rotable Combination Design"" as follows: PS-10 0.175%, reaction temperature 272℃ and reaction time 4hr.

通过优化设计，得到制备无色松香的适宜的工艺为：温度272℃，时间4hr，用量0.175％。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐