首先，他们解释说，如果一个给定的变量对幸福感有影响，那么我们应该认为该变量的任何变化都与观察到的幸福感变化相关。

First, they explain that if a given variable is playing a role in affecting well-being, then we should expect any change in that variable to correlate with the observed changes in well-being.

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首先，他们解释说，如果一个给定的变量在影响幸福感方面发挥了作用，那么我们应该预期该变量的任何变化都与所观察到的幸福感变化相关。

First, they explain that if a given variable is playing a role in affecting wellbeing then we should expect any change in that variable to correlate with the observed changes in wellbeing.

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注意，当您改变一个等价类的变量时，这个变化会串联影响到其他等价类。

Notice that when you change the variables on one equivalence class, that change cascades to the other classes.

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So what they do is, they're describing how these thermodynamic properties change, in terms of only state functions and state variables.

他们的作用是描述,随着状态函数和状态变量的变化，系统的热力性质如何变化。

麻省理工公开课 - 热力学与动力学课程节选

So, these on-changing properties that describe the state of the equilibrium state of the system are called state variables.

这些描述,系统平衡态的,变化的属性,就叫做状态变量。

麻省理工公开课 - 热力学与动力学课程节选

And I want to remind you, that block of code is a set of instructions, the same set of instructions that are going to be done each time through the loop.

我想提醒大家,这块代码是一个指令集,一个每次循环都会被执行的相同指令集,会变化的仅仅是变量的值。

麻省理工公开课 - 计算机科学及编程导论课程节选