化学反应的用法和样例：
例句
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反应热测量对某一化学反应过程、状态变化过程或一溶解过程释放也或吸收的热量所作的测量
Measurement of the amount of heat evolved or absorbed in a chemical reaction, change of state, or formation of a solution. -
能经化学反应感光的能通过化学反应对阳光或紫外线辐射反应的
Capable of responding to sunlight or ultraviolet radiation by chemical reaction. -
现在这两种物质（互相）接触产生了化学反应。
The two substances are now in contact (with each other), and a chemical reaction is occurring.
