数学定律：“在三角形中，任意两边和大于第三边”。

"The sum of the two sides of a triangle are greater than the third" is a mathematical truth.

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他们只是想确保你没有作弊——特别是没有违法数学定律。

They just do not want you to violate any laws — particularly laws of mathematics.

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数学是一门语言，可以用来阐明物理或经济定律，进行严密的计算，最终转化为预测。

Mathematics is the language used to formulate the laws of physics or economy, and to make rigorous computations that turn into predictions.

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This is an abstract and powerful mathematical statement of the first law of thermodynamics.

这是热力学第一定律的一个抽象,而且具有很强数学性的表述。

麻省理工公开课 - 热力学与动力学课程节选

I'll show those again, but what I want to do mostly today is try to put a mathematical statement of the second law in place that corresponds to the verbal statements that we saw last time.

今天我还将跟你们讲这些，但今天的重点是,对上次口头表述内容中的热力学,第二定律,的数学推导,我们上次看到的。

麻省理工公开课 - 热力学与动力学课程节选

The way the physics works is you will find some laws of motion in mathematical form, you put in the initial conditions of whatever, you solve the equations, and the answer that comes, you have no choice.

在物理问题中,你可以用数学方法得到运动定律,你代入初始条件,然后解方程,获得答案,你别无选择

耶鲁公开课 - 基础物理课程节选