Quantum mechanics is a highly successful theory: it supplies methods for accurately calculating the results of diverse experiments, especially with minute particles.

量子力学是一种非常成功的理论：它提供了精确计算各种实验结果的方法，特别适用于微小粒子方面。

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And this is the familiar result from ordinary mechanics, where you're not worrying about something like entropy for a whole collection of particles.

在普通力学中，如果不关注大量粒子的熵，诸如此类的物理量的话，这就是我们通常见到的结果。

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In the bizarre world of quantum mechanics, however, subatomic particles can exist in several states at once.

而在量子力学的奇妙世界，亚原子粒子却能同时处于几种状态。

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And this is the familiar result from ordinary mechanics, where you're not worrying about something like entropy for a whole collection of particles.

在普通力学中，如果不关注大量粒子的熵，诸如此类的物理量的话,这就是我们通常见到的结果。

麻省理工公开课 - 热力学与动力学课程节选

Now, the reason this condition always holds in ordinary mechanics is because you're never, in that case, concerned with a huge statistical population of particles where the disorder among them is an issue.

这个条件在力学中总是成立,这是因为在力学中,我们从来没有关注过大量粒子的统计行为，而对这些系统来说,无序是很重要的。

麻省理工公开课 - 热力学与动力学课程节选

Quantum mechanics tells us that if such a Higgs field exists, then one can produce real particles out of the field if one throws enough energy into a small enough volume.

CNN: Higgs and the holy grail of physics