查询词典 reaction rate

The size of silver powder has a significant effect on the rate of cyanidation reaction.

金银粒子越小，反应所需时间越少。

The study demonstrates that organic calcium removal rate increases with increasing amount of decalcification agent addition, injected water, reactor temperature and reaction time.

结果表明：有机钙的脱除率随着脱钙剂加入量、注水率、反应温度、反应时间的增加而提高；脱钙反应在弱酸性溶液中进行较为有利，脱钙剂水溶液的pH值以6。

The rate and limits of the decarburization reaction of FeO dissolved in CaO-SiO2-Al2O3 slag and Fe-C droplets have been studied.

对CaO-SiO2-Al2O3-FeO熔渣体系与铁碳金属颗粒反应的脱碳反应速率及脱碳反应限度进行了研究。

The results show that the demanganization and desiliconization rate are as high as 80~90% in a best temperature of 1500℃; if more agents are added, decarburization reaction will appear with formation of foam slag.

结果表明，铁精矿A的最佳适用温度为1500℃，最高脱硅脱锰率均达80%～90%，进一步提高加入量只会促进脱碳反应的进行，从而生成泡沫渣。

The results from the study on the decoloring conditions of strain 3# showed that the pH range for decoloring reaction was 5～11 with 6 ～7 being the optimum, the temperature range was 10～30℃ with 30℃ being efficiency optimal. The decoloring efficiency was higher under the presence of oxygen than that lack of oxygen. Strain 3# could more strongly decolor malachite green under optimum conditions. The decoloring rate was above 50%, 70% and 90% in 4, 12 and 24 h treatment, respectively.

对3#菌株的脱色反应条件进行初步研究表明，3#细菌的脱色反应的pH为5～11，最佳范围pH 6～7；温度10～30℃，最佳温度30℃；有氧气情况下的脱色效果较缺氧情况下好；在最佳条件下该菌对孔雀绿染料的脱色作用较强，处理4、12、24 h后，色度去除率分别达到50%以上、70%以上和90%以上。

Based on these results, the factors and kinetics of solar energy photoelectrocatalytic degradation of model pollulants, the cathodic behavior and its dependence on anodic reactions, have been studied in detail.It was demonstrated that metal silver and hydrogen peroxide can be generated, respectively,in the cathode during photoelectrocatalytic degradation of organics in the anode, and that photoanodic reaction is the rate-determing step in the system.

在此基础上查明了太阳能光电催化降解污染物体系的影响因素和动力学规律，阴极反应行为及与阳极反应的相互关系，实现了阳极光电催化降解污染物的同时，阴极分别回收金属银和产生过氧化氢，证明了光电催化反应时，阳极氧化反应是速率控制步骤。

The kinetic theory of the substrate reaction during modification of enzyme activity has been applied to study the inactivation kinetics of enzymes by denaturant. However, an important problem related to the determination of the inactivation rate constants has not been considered in a previous publication.

虽然酶活力不可逆抑制的动力学理论已经被推广应用于变性剂作用下的酶失活动力学研究，但以往的研究忽略了一个与测定失活速度常数相关的重要问题。

The rate-controlling steps of deuterating and dedeuterating reaction in α+β region are assumed to the nucleation-growth and diffusion in deuterium of deuteride respectively.

在α+β相域，氘化与去氘化反应的速控步骤分别为氘化物的成核-长大过程和氘化物中氘的扩散过程。

Rate constant of ONOO〓 formation, which is access to diffusion-controlled limit, is as three times as that of dismutation of O〓〓· by superoxide dismutase, and much faster than that of reaction of NO with hemecontaining proteins, thus demonstrating that ONOO〓 can form as long as NO meets O〓〓· during their diffusion in biological milieu.

ONOO〓在体内生成有较充分的理论依据。ONOO〓的生成速率接近于受控制的弥散极限，比超氧化物歧化酶歧化O〓〓·的速度快3倍，远远超过NO与血红素蛋白的反应速度。

Results: The evaluation at the middle of period of treatment: the variations of pulmonary rales, perpheral bloody white blood cells and the X-ray examination an chest of the two groups' patients wren similar, but the symptom of fever and character of respiratory tract's secretion of the patients in experiment group took turns for better obviously than the control group's, the rate of elimination for ineffective on 3 day of the experiment group was obviously lower than the matched control. The evaluation at the end of period of treatment: the total effectualness and elimination of bacterium of the experiment group were notably higher than the matched control, There were not any obvious untoward reaction.

结果 疗程中期，两组肺部啰音、外周血白细胞及胸部X线检查变化相近，试验组发热、呼吸道分泌物性状较对照组明显减轻，3d无效淘汰率低于对照组；疗程结束，试验组有效率和细菌消除率均高于对照组，且未见明显不良反应。

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％。