This paper defined time, space, displacement, velocity, acceleration, and raised axiom of Galileo exchange, which is the basis of axiom system in particle mechanics.

本文定义了时间、空间、位移、速度、加速度等量，并提出伽利略速度变换公理，为质点力学公理体系建立了运动学基础。

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Of these, the BMAT most closely reproduces the contact and particle mechanics of service conditions, and can give quantitative alloy performance comparisons closely matching those in service.

此中，BMAT中关系最为亲密地抄录接触和粒子力学地效劳前提，而且可以定量合金机能比拟亲密地共同，这些效劳。

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In the parlance of quantum mechanics, however, to call a particle pointlike is to say no more than that it is elementary, ie, that it is not known to be made up of smaller bits.

而在量子力学术语中，“点粒子”即为“基本粒子”（迄今还未发现有用来构成基本粒子的更小单位）。

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And the reason that quantum mechanics is going to work where classical mechanics fails is that classical mechanics did not take into account the fact that matter has both wave-like and particle-like properties, and light has both wave-like and particle-like properties.

上发生的行为,量子力学得以成功,而经典力学却失败的原因,是因为经典力学,不能包容物质的，波动性和粒子性,和光的波动性和粒子性。

麻省理工公开课 - 化学原理课程节选

In particle physics, sound-bite explanations are much harder: wave-particle duality, quantum mechanics, general relativity and string theory make good mathematical sense, or so I am told, but they generally defy translation into English.

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Heisenberg's uncertainty principle, one of the central tenets of quantum mechanics, maintains that you cannot pin down all the physical properties of a particle at the same time.

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Working on a theory to combine quantum mechanics with Einstein's special relativity, he realised his equations predicted a corresponding anti-particle for every particle in existence - identical in every respect, but with an opposite electrical charge.

BBC: The problem with anti-matter