扭转的

There are fourteen chapters, including introduction, plane stress and plane strain, two-dimensional problems in rectangular coordinates, two-dimensional problems in polar coordinates, photoelastic and moire experimental methods, two-dimensional problems in curvilinear coordinates, analysis of stress and strain in three dimensions, general theorems, torsion, bending of bars, axisymmetric stress and deformation in a solid of revolution, thermal stress, the propagation of waves in elastic solid media, at last there is an appendix on the application of finite-difference equations in elasticity.

全书共十四章，包括绪论、平面应力和平面应变、直角坐标中的二维问题、极坐标中的二维问题、光弹性与云纹实验方法、曲线坐标中的二维问题、三维应力和应变问题、一般定理、简单的三维弹性问题、扭转、杆的弯曲、回转体中的轴对称应力和变形、热应力、弹性固体介质中波的传播，最后有一附录，讲述差分方程在弹性理论中的应用。

It is the basis for designing balance mass. And, the couple between flexure and torsional vibration is calculated, which is QRSs intrinsic zero drift, and is also main considerations of determining scale factor.(3) There is a difference for equivalent elastic compliance constant of quartz crystal between the X-direction and the Z-direction. It is related directly to each parameter of QRS.

2对由机械耦合产生的零漂作了系统的定量描述，指出质量不平衡等因素产生的零漂可以由加质量和去质量来消除，这是我们设计平衡质量的依据；同时，计算了弯曲振动和扭转振动之间的耦合，指出它是QRS的固有零漂，也是确定QRS标度因子时所必须考虑的主要因素之一。

Considering present capabilities of Chinese tourism enterprises and changed international competition environment, this paper presents the necessity of improving traditional and narrow minded strategy of market following, focuses on global localization, gives transnational operation overseas enterprises correct strategic positioning through strategic alliance to break into host countries\' external networks and take overseas subsidiaries\' role of listening post to the full play, and finally to promote active development of transnational operation.

在中国旅游企业现有能力基础和已经变化了的国际竞争环境的前提下，论文提出中国旅游业跨国经营要改善传统的市场跟随模式的战略焦点，反思狭隘的市场跟随模式，着眼"全球本地化"，对跨国经营海外企业进行正确的角色定位并应该通过战略联盟这一桥梁嵌入到东道国的外部网络中去，扭转目前"黑洞"形象，充分发挥海外子公司"潜听哨"的作用，推进跨国经营积极发展。

For the one-dimensional p-Laplacian with indefinite weights, four sequences of periodic and anti-periodic eigenvalues are given by introducing the rotation number function, and these eigenvalues are the endpoints of the preimage intervals of the rotation number function at nonnegative integers.

本文以带变号权函数和带变号势函数的一维p-Laplacian为基本模型，系统地阐述了特征值的旋转数方法、带正权Dirichlet特征值的最佳估计、特征值在正则和奇异渐近半线性方程的可解性中的应用、Fucik谱的旋转数方法以及Fucik谱在周期解的扭转性和多解性中的应用。

The PZT plates were polarized in thickness direction. By using the deformation in the plane perpendicular to the direction of polarization, the rotation around Z axis was generated when the torsional vibration around Z axis mode was excited. And the rotation around X axis or Y axis was generated by combining the longitudinal vibration mode and the bending vibtration mode.

利用压电陶瓷在垂直极化方向平面内的变形，激励定子绕Z轴的扭转振动模态，实现转子绕Z轴的转动；激励在定子中固有频率接近、振动方向相垂直的伸缩振动模态和弯曲振动模态，并通过振动的叠加使定子末端质点产生绕X轴或者Y轴的椭圆运动，实现转子绕水平轴的转动。

Well-timed and surprising dollar purchases (ideally, but not necessarily, in concert with other major central banks) would re-insert two-way risk into what has increasingly become a one-way euro/dollar bet and could cap or even reverse euro strength.

适时的和令人始料未及的买进美元（最理想的但并不是非此不可的是，与其他主要的中央银行一起采取行动），会给业已日益变成单向的欧元----美元赌博重新注入双向的风险，而且还可以封住或者扭转欧元的实力。

It puts forward freshly three aspects on the base,precondition and circumstance of risk prevention ,especiallyresearches for the risk foundations-"transition period" and hinese characteristic marketeconomy .It brings out five entries to risk prevention:retortion of the direction of macroscopically adjustment,market financing,system innovation ,the decentralization andrecombination of the state property right ,reformation of organizational system in the state commercial bank and the establishment of inspiritment -obligation system .

第四章是全文的创新和结论部分，通过对风险防范的基础、前提条件和环境三方面的创新论述，特别是对"转轨时期"和"中国特色的市场经济"两个风险基础的研究，提出了风险防范的五个切入点：扭转宏观调控方向、市场触资制度创新、国有产权的分散重组、改革国有商业银行组织制度和激励——约束机制的建立。

Through quantitative calculation, the conclusions are drawn: 1it was obvious that the south was faster than the north; contrast of economic level has reversed since reform and opening.2The reasons accountable for these changes consist of politics, export strength,economic system,input intensity (special foreign direct investment), industrial structure and so on.3Social-cultural elements have certain influence by all means.4To turn the north tardy, we should quicken the pace of reform and opening in the north, make efforts in restructuring big and middle state-owned enterprises, vigorously carry out the strategy of making the country strong through science and education.5The north must grasp opportunity, build new economic growth pole, retransfer and upgrade industrial structure as soon as possible.

通过定量计算得出结论：经济发展速度南快北慢现象是明显的，经济发展水平改革开放前北高南低，目前则是南高北低，致使中国经济发展出现了新的不平衡。南快北慢的原因是：地缘优势和超前观念所获得的政策倾斜，导致了出口能力和投资强度的差别；工业结构(特别是所有制结构和轻重工业结构)的作用也很明显，而国家投资的作用很小，且越来越不重要。扭转北慢的对策是加大北方改革开放力度，切实搞好国有大中型企业改造，大力实施科教兴国战略；北方要注意把握机遇，构筑新一轮经济增长点，尽快实现产业结构的升级和转型。

Based on the generalized potential energy variational principal of nonlinear elasticity theory with large deflection, the incomplete generalized potential energy functional with large deflection is established on the space coupling free vibration of three-span self-anchored suspension bridge by considering the effect of axial compressive and shearing strain energy of stiffening girder.

摘 要：摘要：基于大位移非线性弹性理论的广义变分原理，考虑了加劲梁轴向压缩应变能和剪切应变能的影响，建立了三跨自锚式悬索桥空间耦合自由振动的大位移不完全广义势能泛函，通过约束变分导出了自锚式悬索桥的竖向挠曲振动、横向挠曲振动、纵向振动及扭转振动的基础微分方程，为自锚式悬索桥的固有振动性状分析提供可靠的理论依据。

In the study of the Lagrange stability of impact motion, we give some conditions of the bouncing solution of the asymptotically linear equation which is bounded or unbounded. Outside of a large disc, using the symplectic transformation of the Hamilton system to estimate the iteration of the successor map. Applying the Moser's small twist theorem, we get the invariant curves and then give the proof of the bouncing solutions which is bounded. We will estimate the successor map of the equation directly for proving the unboundedness of the bouncing solutions.

在碰撞运动的Lagrange稳定性的讨论中，给出了渐近线性方程碰撞解有界或无界的条件，在充分大的圆盘外，通过Hamilton系统的辛坐标变换的角度平均来估计后继映射的迭代，应用Moser小扭转定理得到不变曲线从而给出在一定条件下碰撞解有界的证明，碰撞解无界性的证明将采用直接估计后继映射的方法给出。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐