力学的

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。

On the one hand is the mechanical side of the problem, the changes of velocity and position in time.

从一方面来说，这是一个力学的问题，因为这里存在着速度和位置对时间的变化。

Methods Seven cadaveric thoracolumbar spinal specimens were harvested to imitate thoracolumbar fracture according to Panjabi method. Biomechanical tests of stability were performed by measuring spinal strength, stiffness, torsional rigidity and load-to-failure after 5 different instruments were placed respectively.

用7具人尸胸腰段标本，按Panjabi方法制作骨折模型，分别安放5种固定器，利用生物力学的电测实验应力分析方法测试固定后脊柱的强度、刚度、扭转强刚度和极限强度。

Therefore, it is important to investigate the electro-elastic interaction and fracture behavior of piezoelectric materials.

因此，对压电断裂力学的研究是十分重要的。

In the finite element method for elastic problems, when any two constant-strain elements are geometrically similar in the plane or space coordinates, their coefficients of stiffness are equal or proportional.

在弹性力学的有限单元法中，几何相似的平面或空间等应变元，其劲度系数相等或成一定比例。

There are many examples of pneumatic devices in real life.

There 是气动力学的设备许多例子在真正的生活中。

To make generalizations in this area of predictability which, indeed

现在我们都深深意识到，我们的前辈对牛顿力学的惊人成就是那样崇拜，这

Virtual displacement principle of the analysis statics was used to establish static-equilibrium equations, which was used in calculating driving forces and torques when the mechanism was at some static-equilibrium state.

采用分析静力学的虚位移原理建立静力平衡方程，并用该方程计算了机构处于某种静力平衡状态下的平衡驱动力及力矩。

Reciprocal theorem for non-linear elasticity with finite displacements in rectargular cartesian coordinates is established in this paper and reciprocal theorems for bending of thin plates with large deflections are given.

建立了直角坐标系有限变形非线性弹性力学的倒易定理并给出了大挠度弯曲薄板的倒易定理。

In the international nonlinear solid mechanics field,the problems of localization and shear zone have drawn an extensive attention.

国际上 ，在非线性固体力学的研究中，局部化和剪切带等问题已成为研究的热点问题之一。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。