What are the chemical reaction characteristics of tropane alkaloids?
氢溴酸东莨菪碱的鉴别原理是什么？
What are the chemical reaction characteristics of tropane alkaloids?
氢溴酸东莨菪碱的鉴别原理是什么？
The heat brings about a chemical reaction, and oxygen is liberated.
热量引起化学, 
放出氧气。
A catalyst is a substance which speeds up a chemical reaction.
催化剂是一种能加速化学的物质。
We imagine using an anticatalyst to "freeze out" any chemical reactions in the system.
可想象利用一种催化剂使体
内的任意化学“冻结”。
The ageing depeion of nitrate-poetherthased Polyurethans were studied by means of swellingtheory of polymere and chemical reaction kinetics.
运用
合物的溶胀理论和化学动力学，研究了硝酸
醚氨的老化降解过程。
Chemical laser is characteristically energized by an exoergic chemical reaction which produces the nece ssary population inversion of lasing species.
化学激光器是以能化学提供能源, 并且以化学产生粒子数转为础的。
The gas-solid reaction mechanism was studied in the tank reactor.It was found that the reaction rate was controlled by the interdiffusion and intrinsic chemical reaction.
在釜式器内研究了氯磺化的气固相机理，发现气体的内扩散和本征化学是氯磺化的控制步骤。
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