经典力学

The ideas and methods of modern differential geometry have found wide application in classical mechanics, in the theory of multibody system dynamics, and in the Lagrangian and Hamiltonian formalisms of mechanics.

微分几何动力学建模理论已经广泛应用于经典力学，多刚体动力学理论和Lagrange和Hamilton动力学建模理论当中。

It follows of the principle of the relativity that Newton's second law of motion, although fundamental i n classical mehcanics, only has an approximate and by no means complete validity.

personal version：牛顿第二运动定律关于相对性的原则，虽然这是经典力学的基础，但是也毕竟是大概的并非完全正确。

In reality, the kind of objects which 经典力学 can describe always have a non-zero size.

在现实中，經典力學可以描述的物体总是具有非零的尺寸。

Based on the eigen theory of elastic mechanics , the Hamilton density functions for various deformation process are obtained by defining the normal conjugate momentum density , and the Hamilton normal equations for elastic body are also given .

Hamilton体系由于其方程具有对称性，在经典力学和量子力学及其场论等领域中发挥了重要作用。Hamilton体系与Lagrange体系的不同之处体现在：它是在相空间，以对偶变量的形式描述系统的运动规律。

The article will oscillator quantum mechanics and classical mechanics, the results are compared, and reveals the microscopic particles and macro particle movement rules of profound differences.

文章将振荡器的量子力学和经典力学的结果进行了比较，揭示了宏观和微观粒子的粒子运动规律的深刻的分歧。

With the use of classic mechanics, there are too many hypothesis and predigestion in the calculation of complex structures, so the veracity of results is not very good.

采用的经典力学计算时，对于复杂结构的计算中采用的假设和简化太多，结果的准确性相对较差。

Contemporary natural science, especially the development of the foundation academics at the macro view and tiny view two directions up, all having already outrun what daily life be familiar with and used Newton the classic mechanics and rigid space far and far can explain of scope.

当代自然科学，特别是基础学科的发展在宏观和微观两个方向上，都已远远超出日常生活所熟知的、用牛顿经典力学和刚性空间可以解释的范围。

Since the structure and the shape of the crankshaft are complicated and the loads vary periodically,it is difficult to calculate its strength and rigidness using classical mechanics.

因为曲轴的结构形状比较复杂，各个曲拐的受力又在发生周期性的变化，所以运用经典力学对其进行强度和刚度计算有一定的困难。

Why do Maxwell's equations differ in form and character from the equations of classical mechanics?

麦克斯韦方程何以在形式上和性质上都跟经典力学中的方程不同呢？

The classical mechanics laid foundation for the modern physics , the theory of relativity has solved the problem of high speed movement , the quantum mechanics then has solved the problem under the microscopic subatom condition .

经典力学奠定了现代物理学的基础，相对论解决了高速运动问题，量子力学则解决了微观亚原子条件下的问题。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新