弹性的

The deformation of the paper consists of elastic deformation and plastic deformation.

纸张的变形可以不合为不不弹性变形和不弹性变形。

Resilience is the capacity of a material to absorb energy during elastic deformation.

弹性是指材料在弹性形变中吸收能量的能力。

Elastic scattering The scattering of an electron is described as elastic if a negligible amount of energy is lost by the primary electron in the process.

弹性散射散射的电子被描述为弹性，如果在这一过程中初级电子丧失了微量能量。

After in- troducing of the strain energy function, we first validated the derivation of the classical elastic constitutive equation using the strain energy function.

第三章从经典弹性力学和经典牛顿流体力学入手，在引入了应变能函数W〓以后，首先验证了经典弹性力学通过应变能函数导出弹性体本构方程的过程。

Does the change in employment depend on the elasticity of demand, the elasticity of supply, both elasticities, or neither?

这个变化取决于劳动力的供给弹性？需求弹性？还是两者都取决于？两者都不取决于？

The axially symmetric torsion of rigid circular shaft of varying diameter embedded in an elastic half space is studied by line-loaded integral equation method, where the problem is formulated by distributions of fictitions fundamental loads PRCHS (point ring couple in half space) along the axis of symmetry in interval of the shaft and is reduced to a one-dimensional and non-singular Fredholm integral equation of the first kind and is easily solved numerically.

弹性半空间；本文用线载荷积分方程法研究嵌在弹性半空间的刚性变直径圆轴的轴对称扭转。利用将"半空间的点环力偶"这一虚的基本载荷沿对称轴的圆轴区间中分布就能使本问题归结为一个一维的非奇异的Ferdholm第一种积分方程，且很易用数值求解。文中给出刚性圆锥，圆柱，圆锥柱嵌在弹性半空间的扭转的数值计算的例并和他人的已知结果相比较。

In order to reasonably depict four basic problems with friction, one Coulomb friction new form in first Kirchhoff stress is proposed to deal with finite deformation problems, other Coulomb friction form in incremental mode to elastoplastic flow theory; Hilbert function spaces concerning elastoplastical problems with friction are established, so it makes all operations and calculations in the treatise standardized within the scope of reasonably topologic structure; In view of functional extremum, the equivalence between generalized variational inequalities principles in elastoplasticity with friction and corresponding basic problems are testified by inducing Lagrangian multipliers, so it provides a rationally theoretical basis for numerical methods in elastoplasticity with friction; From the viewpoint of variational inequality, the theory of generalized variational inequalities in elasticity and elastoplasticity with frictional constraint is studied, and the uniqueness and existence of the solution of FEM is proofed under the proposed conditions of stress compatibility, and them FEM approximation and a discrete solution are discussed; Based on the principles of generalized variational inequalities in elastoplasticity with friction, direct generalized variational inequalities methods is pretended, which is a natural generalization and development of direct variational methods; Using generalized variational inequalities methods, some examples in metal forming including plane deformation, upset and extrusion are analyzed and the results prove that all the theories and methods in the paper are right, feasible, accurate and advanced.

主要内容有：为了合理地描述金属塑性成形中摩擦约束弹性、弹塑性基本问题，提出和研究了有限变形下以Kirchhoff第一应力表示的Coulomb摩擦定律形式和弹塑性流动理论下以增量形式表示的Coulomb摩擦定律表示形式；系统建立了摩擦约束弹塑性问题的Hilbert函数空间，使本文规范在一个具有合理的代数拓扑结构内进行一切操作和运算；利用Lagrange乘子，从泛函极值的角度系统地阐述和论证了一系列摩擦约束弹性、弹塑性广义变分不等原理与相应的实际问题之间的等价性，它为处理摩擦约束的弹塑性力学数值方法提供了合理的理论基础；从变分不等式的角度出发，阐述了对应于摩擦约束弹性、弹塑性问题的广义变分不等式理论，首次提出了在应力相容性条件下，它的有限元解具有存在唯一性，进而讨论了其有限元近似及离散解法；基于摩擦约束弹塑性广义变分不等式原理，首次提出了直接广义变分不等式方法，这一方法是直接变分法的合理推广和发展；利用直接广义变分不等式方法对金属压力加工中的平面变形问题、镦粗、挤压等塑性成形问题进行了分析计算，验证了该理论和数值算法的正确性、实用性、精确性和优越性。

The animal contains rich collagen and elasticity egg white in the tendon , pig's feet , hogskin , often, an energy being used for food makes the skin cell become full-grown , skin is full , the wrinkle falls off, skin becomes exquisite and is rich in elasticity.

动物筋腱、猪蹄、猪皮中含有丰富的胶原蛋白和弹性蛋白，经常食用能使皮肤细胞变得丰满，肌肤充盈，皱纹减少，皮肤变得细腻和富有弹性。

Its content was only 0.945%±0.492％ of the disc dry weight.The elastin was obviously reduced at deep laminae of annulus fibrosus.④On the elastin fibers of the pathological discs,the fraying,irregular holles,crevice were showed.

突出椎间盘弹性蛋白纤维密度降低，含量明显减少，仅占椎间盘干重的0.945%±0.492％，尤以纤维环深部降低明显，弹性蛋白纤维上出现磨损、裂隙、不规则空洞等。

You should also be familiar with momentum and kinetic energy for elastic and inelastic collisions.

你应该熟悉弹性和非弹性碰撞下的动量和动能变化。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。