So,this country's track record around staging and managing safe events is equal to nonein the world."

VOA: standard.2009.06.12

Going around in a cycle the integral of dq over T is less than or equal to zero.

对一个循环过程作dq除以T的积分,小于等于零。

麻省理工公开课 - 热力学与动力学课程节选