a chemical reaction accompanied by the evolution of heat

burns: exothermic reaction causes product to heat which is normal.

灼伤：放热反应会使产品变热，超出正常水平。

it was observed that pvc weight was reduced in three stages with exothermic reaction in its combustion.

结果表明，pvc的燃烧机理是由三个过程决定的，可用三个一级反应表示。

based on the simplified approach, analysis of parametric sensitivity and runaway behaviour are made for the industrially important highly exothermic reaction takes place in fixed-bed reactors.

在此基础上分析了进行强放热反应的工业固定床反应器的参数灵敏性及失控行为。

an exothermic reaction releases heat(energy).

放热反应释放出热量（能）。

due to the influence of exothermic reaction process and remaining catalyst, the analytical error of tpo and tga would be greater.

指出采用tpo法和tga法测定时，受到反应放热和残留催化剂的影响，测定结果误差大；

exothermic reaction can be reduced by adding hexahydrophthalic anhydride to the phthalic anhydride.

氢 化邻苯二酸酐加入到邻苯二酸酐中，可使其放热反应减慢。

generally speaking, the most dangerous exothermic reaction system is such that has low activation energy and high frequency factor.

一般来讲，最危险的放热反应系统是具有低活化能且反应热很大的系统。

for example, a highly exothermic reaction might be well controlled in a small stainless steel vessel, but could prove impossible to control in a larger glass-lined vessel.

例如，一个高放热的反应可能在一个小的不锈钢反应釜内能够很好的被控制，但是在一个大的塘玻璃反应釜内证明是不可能控制的。

the reaction was proved to be an exothermic reaction by dynamic and thermodynamic which agrees with experimental results.

通过热力学及动力学计算，重氮化-席曼反应是剧烈的放热反应，与实验结果相吻合。

an exothermic reaction releases heat(energy).

易于起反应或反应激烈。

the main technical challenge uop′s two-stage hydrogenation technology needs to resolve is that strong exothermic reaction will result in too high temperatures on the catalyst bed.

其中uop公司开发的两段加氢技术要解决的技术难点主要是强放热反应会引起催化剂床层温度超标；

then an approach was put forward to evaluate the potential risk of thermal runaway in exothermic reaction system by use of system safety index, and the equilibrium region o.

提出用系统安全指数概念来评价放热反应系统发生热爆炸的潜在危险性，分析化学放热系统的平衡域。

combustion exothermic reaction to prepare materials is referred to as self-propagationhigh-temperature synthesis (shs), which is different from conventional combustion providing heat.

传统供热燃烧是利用燃料和氧化剂的反应获得热能。自蔓延高温合成（shs）则是利用燃料和氧化剂的放热反应制备有用材料。

the decomposition reaction is endothermic reaction for the ground state of hydrazine, but it is exothermic reaction for the first excited singlet state of hydrazine.

基态分子分解反应是吸热反应，而单态第一激发态分解反应是放热反应。

studies the problem of thermal equilibrium in exothermic reaction systems and puts forward the concepts of equilibrium region and degree of equilibrium in such systems.

讨论了化学放热系统热平衡问题，提出了系统平衡域和平衡度的新概念。

this exothermic reaction of a fuel with an oxidizer creates gases of high temperature and pressure, which are permitted to expand.

燃料和氧化剂间的放热反应产生可膨胀的高温高压气体。

this exothermic reaction creates gases at high temperature and pressure, which are permitted to expand.

这种放热反应会产生高温高压的可膨胀气体。

strong exothermic reaction with acids.

与酸发生强放热反应。