由化学热力学原理探讨了物质稳定性的概念，并根据过渡态理论分析了物质的稳定性和反应活性的关系。
The conception of the stability of substance is discussed on the base of essential principle in chemical thermodynamics.
用热力学分析了原油中总硫和活性硫的关系；最后探讨了活性硫的探测方法。
The relationship between the total sulfur and active sulfur in crude oil was thermodynamically analyzed, and the method for active sulfur monitoring was finally studied.
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