查询词典 reaction

Based on the mechanism of coupling reaction,the reaction of melt metallocene-based Poly(Ethylene-α-Octene) initiated by dicumyl peroxide was studied at elevated temperature in oscillatory shear flow field.

以苯胺、环氧丙烷为原料制备了N，N 二(2 羟丙基)苯胺，然后NHPPA与对硝基苯胺通过重氮偶合反应制备了一种具有推拉电子结构的偶氮化合物4 硝基 4′ N，N 二(2 羟丙基)氨基偶氮苯。

The effect factors of the initial ratio of substrates,amount of catalyst,reaction temperature and reaction time were investigated,and the vitamin E oleate product was analysed by TLC and HPLC.

讨论了原料配比、催化剂用量、反应温度和反应时间等4个因素对维生素E油酸酯产率的影响，并采用TLC和HPLC法对产品进行分析。

The partial oxidation of methane by the H5PV2Mo10O40 catalyst in oleum was studied. The effects of catalyst amount, reaction temperature, reaction time, and sulfur trioxide concentration on the methane conversion and methanol yield were investigated.

以H5PV2Mo10O40 为催化剂，在发烟硫酸中进行了甲烷液相部分氧化，考察了催化剂用量、反应温度、反应时间和发烟硫酸浓度等工艺条件对反应收率的影响。

The effect of the angle on the basic density of the reaction wood: The basic density of poplars and pines in the reaction wood area are both larger than the opposite wood area in different angles.

倾斜角度对应力木基本密度的影响：不同倾斜角度下杨树、火炬松应力木区基本密度均大于对应木区基本密度。

The optimum conditions, kinetic parameters and reaction mechanism of this reaction are studied.

考察了反应的影响因素，研究了最佳测定条件及动力学参数。

The fluorescence characteristics, the optimum conditions of the reaction system and the reaction mechanism were also discussed.

还研究了反应体系的荧光特征、适宜条件并讨论了反应机理。

Methods The optimal concentrations of CarE and substrate, pH, temperature and reaction time of the reaction system, were determined by orthogonal matrix methods.

用正交试验方法研究酶液浓度、底物浓度、反应体系的pH值、反应温度、反应时间5个因素对德国小蠊CarE活性的影响，并从试验组合中选出最优的条件组合。

Reaction conditions was optimized by using orthogonal design, and the sequence of factors influencing the ratio of expansion was obtained, which was, from strong to weak, the electric voltage of electrolysis, the reaction time, the molar ratio of tetrahydrofuran to potassium and the power of micro-wave.

通过正交实验优化了影响石墨膨胀率的因素，得出了各因素对膨化率由强到弱的影响次序：电解电压、反应时间、电解液浓度、微波功率。

The optimal technological conditions of sulfonation which obtained by orthogonal tests were:n∶n=1∶2,reaction temperature is 50 ℃ and reaction time is 6 h.

由方差分析和极差分析可知，物料配比n∶n对反应的影响极其显著，其次是反应时间，温度对反应的影响最小。

Bonding structure and the change of chemical composition at the Cu/ceramic interface are investigated systematically with microanalysis. Furthermore, it is observed that copper bonding to Al〓O〓 ceramic is formed by chemical reaction between Cu〓O within the Cu-Cu〓O eutectic and Al〓O〓 at high temperature, CuAlO〓 as a reaction result is produced, mechanic join and physical osmose are not the main factor.

运用多种显微分析技术，对铜-陶瓷键合界面的微观结构，以及键合前后物相化学成份的变化，进行了系统的研究，在此基础上，明确了Cu-Al〓O〓陶瓷的键合机理；机械交联和物理渗透不是形成键合的首要因素，键合是通过Cu-Cu〓O共晶熔体中的Cu〓O相在高温下与Al〓O〓陶瓷发生了化学反应，形成了牢固的化学键合，同时伴随有一些CuAlO〓物相的生成。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。