This law is represented by an equation that many high schoolers encounter in physics class. It goes as follows.

这条定律可由如下等式表示，许多中学生在物理课上都会学到该等式。

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First, examine this relationship from the Book class side of the equation.

首先，从Book类这一侧分析这种关系。

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This paper gives an exact solution for free vibration of a physically nonuniform straight bar with varying section by the use of a class of integrable linear ordinary differential equation.

本文应用可积的一类线性微分方程求出了非均质变截面弹性直杆振动问题的一个精确解，我们应用这一精确解验证了渐近解的精确度。

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Now, the most interesting one for our class the equation of state that's the most interesting, is the Van der Waals equation of state, developed by Mr. Van der Waals in 1873.

由范德瓦尔斯在1873年发展起来,这个方程的美妙之处，在于它只需要两个参数，下面我们来研究一下。

麻省理工公开课 - 热力学与动力学课程节选

So, we just want to appreciate that what we'll be using in this class is, in fact, the solutions to the Schrodinger equation, and just so you can be fully thankful for not having to necessarily solve these as we jump into the solutions and just knowing that they're out there and you'll get to solve it at some point, hopefully, in your careers.

所以，我们仅仅想要鉴别,将会在这门课中用到的，事实上就是薛定谔方程的解，而且你们可以非常欣慰,因为你们没有必要去,解这些方程而是直接用它们的解,并且知道这些解出自那里,希望你们在学习生涯中。

麻省理工公开课 - 化学原理课程节选

We believe that this is not the time to change that equation on the middle class.

WHITEHOUSE: Press Briefing

There is one further, potentially critical factor at work in the PLO aid equation: Horatius Forbes is a member of an activist freshman congressional class - a group that has, in recent weeks, shown itself increasingly willing to defy its leadership and, if necessary, to defeat legislation contrary to core Republican beliefs.

CENTERFORSECURITYPOLICY: The next freshman revolt?