查询词典 reaction rate

The new method can differentiate the pozzolanic reactivity of active SiO2 and Al2O3, and obtain the useful parameters, such as reaction rate constant and activation energy.

该法不但可以反映出活性SiO2、Al2O3火山灰反应能力差异，还可得到火山灰反应速率常数和表观活化能等有用的动力学参数。

The effect of silicon atom in substrate on the reaction rate and the stereoselectivity of enzymatic reactions was revealed by comparison of horse liver alcohol dehydrogenase-catalyzed stereoselective dehydrogenation of the three isomers of acetyltrimethyl propanone and their carbon analogues in aqueous/organic biphasic systems.

本项目通过对比在水－有机溶剂两相系统中，马肝醇脱氢酶催化三甲基硅烷丙酮的三个异构体及其碳类似物的光学选择性脱氢反应，揭示了底物中的硅原子对酶反应速度、立体选择性的影响规律，成功地合成了高对映体纯度的手性有机硅醇，并实现了辅酶的再生。

As to the initial reaction rate,the influence of sulphation temperature is stronger than that of specific surface area of MgO.

提高MgO硫酸盐化的反应温度能够增加MgO变成MgSO4的转化率。就最初反应速率而言，硫酸盐化反应温度的影响大于比表面积的影响。

It is found that the higher the calcination temperature of MgCO3,the smaller the specific surface area of MgO is,so is the initial reaction rate of sulphation of MgO.

实验表明，菱镁矿(主要成分MgCO3)的煅烧温度越高，其煅烧产物MgO的比表面积越小，因而MgO硫酸盐化的初始反应速率越低。

The results show that when the pressure increases, the gasification reaction rate will be faster, the concentration of CO and H2 reduce, the concentration of CH4 increase and undecomposed vapor increase. When the pressure increases from 1 to 200atm, the concentration of CH4 will increase from 0.06% to 5.66%. Pressure has little effect on the heat value of syngas.

研究表明：随着气化压力的提高，气化反应速度加快，合成燃气中CO和H_2含量减少，CH_4含量增加(反应压力从1atm提高到200atm时，CH_4含量从0.06%提高到5.66%)，未分解的水蒸汽量增加；压力对高温气化燃气热值影响不大。

In this article, the immobilized conditions and the proportion of two enzymes have an effect on the reaction rate.

本文研究了双酶比例和固定化条件对两种共固定化酶反应速率的影响。

The same time, some buyers were older, most of them intent on the do not want to loan, and their reaction rate increases more strongly.

与此同时，一些买家包括老年人，其中大部分是意图对不想贷款，其反应速率增加更强烈。

Three initiators, ammonium persulfate / DMA, ammonium persulfate / urea / ammonia liquor, ammonium persulfate / triethanol amine were applied to the polymerization at 50癈, 55 癈 and 60癈, and the influence of ratio oxidant / reductant on reaction rate and molecular weight of polymer were studied.

本文研究了过硫酸铵／DMA、过硫酸铵／氨水／尿素、过硫酸铵／三乙醇胺三种引发体系在50、55、60℃下，不同氧化剂、还原剂配比条件对反应速率、分子量的影响。

Packed bed electrodes can reach higher current densities at relatively low electrode polarizations,which is favorable to mitigating the inconsistency between reaction rate and selectivity.

填充床电极具有大的内表面，能在相对低的极化下，达到较高的表观电流密度，有利于缓解反应速率和选择性之间的突出矛盾。

Estimating calculation method of consistencycan be used to calculate bleach agent consistency in the saturation water of fiber cell wall.. The main cause of the reaction rate of displacement bleaching being faster than that of conventional bleaching is that the bleaching agent consistency in the saturation water of fiber cell wall, when bleach liquor mix with pulp by displacement way, is bigger than that of by conventional way.

浓度估算法可用于估算漂剂在纤维细胞壁饱和水分中的浓度，置换漂白比常规漂白反应速度快的主要原因在于漂液以置换方法与纸浆接触混合后纤维细胞壁饱和水分中漂剂的浓度比常规方法的高。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。