与搅拌反应釜的对比试验表明，环路反应器的宏观化学反应速率优于搅拌反应器。
The result shows that the reaction rate in loop reactor is better than in stirrer reactor.
我想了解一些与下学期分子化学工程课有关的东西。我不明白为什么需要这门课，毕竟化学工程师是与宏观的过程打交道的。
I was wondering about next semester 's course in molecular chemical engineering. I don't understand the need for it, after all, chemical engineers deal with bulk processes.
通过观察断裂风机轴裂纹宏观和微观形貌，检验化学成分、显微硬度等方法对风机轴断裂的原因进行了分析。
Fracture analysis of the fan shaft was made by observing macroscopic and microscopic appearances of the crack, and examining micro hardness and chemical composition of the material.
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