This second principle could not be harmonized with the theory of mechanics.

这第二条原理与力学理论是不可调和的。

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It is a remarkable feature of the theory of mechanics that all motion can be described without reference to derivatives higher than the second.

力学理论有一个显著的特点，它可以描述所有的运动而不需涉及二阶以上的导数。

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Trust force and bending moment result in heat expansion are calculated by adopting beam theory of mechanics of materials and applying force component analysis method.

采用材料力学的梁理论，应用力法分析方法，计算出热膨胀导致的推力和弯矩。

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And they had this feeling because there had just been this huge boon of discovery, of scientific advances that included Newtonian mechanics, it included Dalton's atomic theory of matter, also thermodynamics and classical electromagnetism.

他们会有这样的感觉,是因为他们刚，经历科学上的,大繁荣期，包括牛顿力学,道尔顿物质原子理论，热力学和电磁学,都取得了巨大进展。

麻省理工公开课 - 化学原理课程节选

And I'm no scientist and I'm no specialist in sort of empirical matters, and believe me, I'm no authority on quantum mechanics, our best theory of fundamental physics.

我不是科学家,也不是实证方面的专家,相信我,关于量子力学,我并没有发言权,那可是基础物理中最经典的理论

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So, I will point out, in terms of MO theory, because it rigorously does take into account quantum mechanics, it starts to become complicated once we go beyond diatomic molecules.

我要指出的是，对于MO理论，以为它严格的遵守量子力学，所以一旦超过双原子分子,就变得十分复杂了。

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The discovery of quantum mechanics and Einstein's theory of relativity, vital to much of modern technology and economic activity, including the transistor, the laser and the atomic bomb.

ECONOMIST: Letters

In any case, general relativity directly contradicts quantum mechanics, the other great physical theory of the 20th century, so more and more precise tests need to be carried out to find out what cracks might exist in either theory.

ECONOMIST: A new satellite will test Einstein's magnum opus

Niels Bohr, a godfather of quantum mechanics, became embroiled in arguments with Einstein over the theory's interpretation, which Bohr found upsetting.

ECONOMIST: Modern scientists: Physical presence | The