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The non-isothermal degradation was found to be first order reaction. 研究发现热分解过程为一级反应。
The decomposition of a radioactive element is the simplest example of a true first order reaction. 放射性元素的衰变是真正一级反应最简单的实例。
The cis-trans isomerization reaction has been shown to be a first order reaction with an activation energy of 19 kcal/mole. 顺-反异构化反应系属一极反应,反应活化能为19千卡/克分子。
The degradation kinetics of phenol in RFFS followed apparent first order reaction kinetic model. 苯酚在RFFS中的降解动力学符合表观一级动力学模型，理论值与实验结果吻合较好。
The flotation and flocculation flotationof fine wolframine accord with the 2nd order reaction equation a... 细粒黑钨矿的浮选和絮团浮选符合二级反应方程，絮团浮选显著提高了细粒黑钨矿的浮选速率。
The results show that their photolysis kinetics follows the first order reaction. 利用稳态光解法研究了其不同条件下的光解动力学，符合一级反应。
Both the disappearance dynamic of 14C in waters and the accumulation dynamic in hornwort followed the first order reaction kinetics model. 水体中14C的消失动态和金鱼藻对14C的积累动态均遵循一级反应动力学模型;
The 'reaction of (he spontaneous polymerisation of soluble silicic acid to form colloidal silicic acid was determined to be a second order reaction. 测得可溶硅酸聚合为胶体硅酸的反应是二级反应。
The results showed that the blocking reaction was a second order reaction and various blocking agents had different reaction rate constant. 结果表明，六亚甲基二异氰酸酯的封闭反应是二级反应，不同的封闭物，反应速率常数不同；
Photocatalytic reaction kinetics study shows that: in dilute aqueous solution of methyl orange photodegradation reaction is first order reaction. 对光催化反应的动力学研究表明，稀水溶液中甲基橙的光降解反应是一级反应。
Grasp the characteristics of simple order reaction, know how to study chemical kinetics, know the effect of temperature on reaction rate and its application. 掌握简单级数反应的特点和规律,掌握研究反应动力学的方法。掌握反应速率与温度的关系及其应用。
Langmuir-Hinshelwood kinetic equation can describe the treatment of acetone with TiO2/UV, and it accords with Langmuir-Hinshelwood first order reaction kinetics. 研究表明,TiO2/UV光催化氧化室内丙酮气体效果较好,可用于室内的循环空气处理; 在一定初始质量浓度范围内,TiO2/UV光催化氧化丙酮表现为一级反应动力学规律。
Results showed that UV/H2O2 process could remove 2,4-DCP effectively,with the process of photodegradation following the first order reaction kinetics model. 结果表明:UV/H2O2工艺可以有效的去除水中2,4-DCP,光降解过程符合一级反应动力学模型;
The experiments proved that the first stage reaction-lanthanum nitrate /sodium hydroxide reaction was a second order reaction and its kinetic equation was-dcA/dt=25.5c2A. 经实验验证;第一阶段硝酸镧/氢氧化钠盐碱反应为二级反应;动力学方程为-dcA/dt=25.;5c2A。
The results show that the pyrolysis process of biomass can be dealt with as the first order reaction model in two stages for both sawdust and pine needle. 试验结果表明，氮气气氛中，木屑与松针常压和增压下主要热解阶段可认为两段一级反应；
In order not to be late, she cut across the fields. 为了不迟到，她抄近路穿过田野。
We started early in order to arrive before dark. 为了在天黑前到达，我们很早就动身了。
In the first stage, monoester is formed rapidly and in the second stage, the monoester converts to the di ester DOP via a typical second order reaction. 由单酯转化成双酯的反应为典型的二级反应，测定了二级反应的速率常数和活化能。
It indicates that the whole evolution coures is not in accord with the first order reaction,but different evolution stags are in accord with the first order reaction. 发现其演化的整个过程不完全符合化学反应的一级反应，而是分段符合，动力学参数随演化程度的升高而先降低后增加。
The reaction consists of the first order reaction of the hydrolysis of astaxanthin esters and the zero order reaction of the degradation of astaxanthin. 建立了虾青素酯水解动力学模型，结果表明该反应是一个虾青素酯水解的一级反应和游离虾青素降解的零级反应组成的连串反应。