起模

With simplified assumption made for the modal trial mass ratio and the linear response characteristic of the holobalancing technique, the transfer matrix corresponding to a certain correction plane then is extended to the trial set transfer matrix, which is related to a certain order of modal trial mass set. The number of trial runs necessary for the balancing operation is reduced and the balancing efficiency is improved.

借鉴Darlow混合法中模态试重组的思想，通过对模态试重比的简化假设，利用迁移矩阵的线性可叠加性将对应于某单一平衡面的迁移矩阵扩展为对应于某阶模态试重组的迁移矩阵，从而减少了平衡高阶不平衡量所需的试重起车次数，提高了现场平衡效率，且平衡效果良好。

The pattern of camber die-drawing are optimized. The physical innate character of drawing with camber die is analyzed thoroughly. For the first time, the periodical relation between the limit drawing coefficient and the large longitudinal stress in dangerous section is established. Furthermore, the rationale to judge limit deforming degree is developed. Then, the limit drawing coefficient of drawing with camber die is proposed. Based on the criterion that the large stress in flange is smaller than that of limit value, the formula of drawing with camber die without wrinkles is deduced.

对拉深凹模的型式进行了优化；深入地分析了曲面凹模拉深成形的物理本质，首次定量地确定了极限拉深系数与危险断面最大径向应力的关系，提出了判断极限变形程度的依据，分析了极限承载能力，建立了曲面凹模拉深的极限拉深系数的表达式；以凸缘切向最大压应力小于凸缘切向压应力临界值为准则，推导出了曲面凹模拉深不起皱的理论表达式。

As a large powerful company, it owns several filiales: lamp ornament fittings filiale,machine process filiales, plastic products filiable,which can offer quartz lamp holder, golden halogen, halogen lamp holder,E27 lamp cap ,GU10 lamp cap,opital fiber technicsfittings,all kinds of hardware machine fittings and not standard fittings.We can also inject and blow all kinds of plastic products and we can insure that the pattern drawing, making and deliver of the goods are in time.

公司实力雄厚，下设灯饰配件分厂、机加工分厂、塑料制品分厂，能够及时地为广大客户提供石英灯座、金卤、卤素灯座、E27灯头、GU10灯头、光纤工艺配套件、各类五金机械配件及非标配件、注塑各类塑料产品及吹瓶各类塑料产品，并充分保证起模、出样以及生产交货的快捷及时。

In chapter 1, we introduce the development of module theory and it s applications in the development of algebra,and present conditions of development of prime submodule s,prime radicals,isolated submodules.

本文讨论了环与模范畴中一个重要的子模类—孤立子模的一些性质以及它与强不可约子模等之间的一些联系，并引入了强孤立子模和局部孤立子模的概念，探讨了它们的一系列性质，在第一章中，介绍了模论的发展，模论在代数的发展中所起的重要作用以及素子模，素根和孤立子模的发展现状；在第二章中，给出了与本课题有关的重要概念及其结论。

The theory of accretion disks are important for many astrophysical phenomena, including Quasars, active galatic nucleic, X-ray binary stars, and young stellar objects. The most important branch of accretion djsk theory is the stability properties of djsks. It is widely considered that the luminosity variations of various astronomical objects are associated with the instability of accretion disk. The viscosity plays an important role in the accretion disk theory, and magnetic field exists commonly in astronomical phenomena. A more realistic analysis of the stabihty of the accretion disk should include both the radjal and azimuthal perturbations because of the strong shear of viscous flow.In this paper, according to the luminosity Variations of Various astronomical objects, we study the radial-azimuthal instability of an isothermal with magnetic field. We find that the radial and azimuthal fields B〓,B〓 are mainly responsible for enhancing the instability of the magneto-acoustic modes and non-axisymmetric modes,and that pulsational oscillations are larger in the radial than in the Z direction. The model may be useful in explaining the periodic light variation of FU orionis and. T Tauri stars.

在许多天体物理现象中，例如活动星系核，X-射线双星和年青的恒星理论中，吸积盘理论起着重要的作用，而吸积盘理论中的一个重要分支是吸积盘的不稳定性理论，普遍认为活动天体的周期，准周期光变现象与吸积盘的不稳定性有关，在吸积盘理论中，粘滞起着重要的作用，而磁场是天体物理中普遍存在的现象，对于几何薄吸积盘不稳定性分析，由于强剪切流的缘故，应该包括径向和环向扰动两个方面，本文结合天体物理中的各种周期，准周期光变现象，研究了含磁场的等温薄吸积盘的径向-环向振荡不稳定性，结果表明：磁场的径向和环向分量对磁声模和非轴对称模的不稳定性的增加起着主要的作用，且径向振荡大于轴向振荡，所得结果有利于解释FU Orionis和T Tauri Stars的周期光变现象。

I was at the shore and stripping without thinking, then wading into the chilling salt of the Atlantic.

我在海岸和起模没有想，然后进入大西洋的无情盐之内填料。

The shortcoming of ordinary multimode Y branch optical power splitter is that the branch characteristic strongly depends on the excited modal distribution. Different input conditions including different input modes and different input positions will excite different modes and different intensity distribution of these modes in highly multimode waveguides. The interference of these modes will contribute to distribute unstably, i.e.

多模Y分支器件的设计中存在一个共同的问题，即随着光入射条件的不同(包括入射光的模式不同和输入进波导端面位置不同等)，多模波导中所激励起的模的数目以及各个模之间的功率分配也各不相同，激励起的多个模式之间总是存在着不同程度上的相互干涉影响，从而最终影响功分器的分束均匀性。

On the scale of punch and die with punching and bending die punch; Die positioning pulled positioning and bending Die top two pieces of equipment; 6 punch with epoxy fixed on the next model, since blanking punch and bending die role.

上模为凸凹模起冲裁凹模和弯曲凸模作用；模具中定位板起定位和弯曲凹模顶件装置两种作用；六个凸模用环氧树脂浇注固定在下模上，起冲裁凸模和弯曲凹模作用。

Die edge bevel edge fangzheng, existing is not enough, the tightening of the vulnerable after starting kungsi, die tightening, and embossing plate the local deformation, edgwise, and so on will line indentation.

模切版边缘不够方正、存在斜边情况时，紧固后的版容易出现起弓现象；模切版的紧固过度，以及压印平板上的铁板局部出现变形、起弓等情况，都会造成压痕线爆裂。

Occurs when the semi-finished, warping, especially the post-mounted corrugrted semi-finished products, immediately after the closing of embossing plate, on the paper--and there is no uniform die to tilt paper with the sponge rubber or contact, so easily make embossing plate produced by 印张 bliding, die-cutting production phenomenon.

当半成品出现卷曲、起翘情况时，特别是经过裱贴以后的瓦楞纸板半成品，放在压印平板上合压时，纸面与模切版没有均匀接触，使翘起的纸面先与版面上的橡胶条或海绵接触，这样容易使压印平板上的半成品印张产生滑移现象，造成产品模切不准。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。