名词
中文翻译：反应截面
同义词：
['reaction area', 'reaction cross-sectional area例句：1. The chemical reaction is very fast and produces a large amount of heat.（化学反应非常快，产生了大量的热量。）']
例句：
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1. The chemical reaction is very fast and produces a large amount of heat.
化学反应非常快，产生了大量的热量。
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2.The scientist studied the reaction cross-section of the new material.
科学家研究了新材料的反应截面。
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3.The engineer calculated the reaction cross-section to optimize the process.
工程师计算了反应截面以优化过程。