对轴

Methods: The parameters of patellofemoral joints (normal group: 30; abnormal group: 20) were studied at the 0, 6, 12, 18, 24, 30 and 36 degrees of flection with MR in axial plane and MPW, LPA, FTA, PTA, FTD were measured, then, compared in the normal and abnormal ups.

对两组（正常组30个，病例组20个）膝关节分别在被动屈曲0，6，12，18，24，30，36下进行轴位动态MRI检查，测量髌骨最大径，外侧髌股角，股骨滑车沟角，髌骨倾斜角，股骨滑车沟深度，分别比较正常组及病例组在七个不同屈曲角度下各测量参数的差异性。

The influence of the focal length in focal lens on the bottle radius and bottle length is discussed.

讨论了聚焦透镜的焦距f对径向暗域最大尺寸及轴上暗域长度的影响。

The intensity distributing and the contributing range for using the serrated aperture are analyzed based on Fresnel diffraction theory.

应用菲涅耳衍射光强分布理论以及光轴上光强分布理论对波纹光阑在一定条件下的作用范围进行了分析。

Axial distribution of activity ratio A ( 134 Cs)/ A ( 137 Cs) along the fuel rod with different burnup level,irradiation history and cooling time is measured by the γ scanning device. As a comparison, this distribution is calculated by the FCAC code used for the fuel rod failure analysis.

在热室中，用γ扫描装置对秦山核电厂 3× 3 -2考验组件中辐照历史、燃耗及冷却时间不同的两根燃料棒中的铯活度比A(13 4 Cs)/A(13 7Cs)的轴向分布进行了测量，并利用自行开发的压水堆燃料棒破损特性分析程序FCAC进行了理论计算。

Series of experimental studies are carried out to investigate the propagation of an open surface-flaw in gabbro samples under compression load.

bstract 采用含张开型表面裂隙辉长岩试样，对单轴压缩荷载作用下预制裂隙的破裂模式进行一系列试验研究。

A series of experimental studies are carried out to investigate the propagation of an open surface-flaw in gabbro samples under compression load.

采用含张开型表面裂隙辉长岩试样，对单轴压缩荷载作用下预制裂隙的破裂模式进行一系列试验研究。

The nonlinear dynamic equations including the initial geometric imperfections of laminated composite cylindrical shells were derived from Hamilton's philosophy. Assuming the transverse displacements to be composed of axially symmetrical part and axially asymmetrical part, the governing equations expressed as displacement forms of dynamic buckling were obtained by Galerkin method. The equations were solved by finite difference method. The effects of impact velocity, lamination angle, initial geometric imperfection on the axial dynamic buckling of laminated composite cylindrical shells were discussed.

由Hamilton原理导出包含初始几何缺陷的复合材料层合圆柱壳的非线性动力方程；将横向位移设为对称及非对称两部分，由Galerkin方法得到以位移形式表达的动力屈曲控制方程，通过有限差分方法求解；讨论了冲击速度、铺层角度、初始几何缺陷等各种因素对复合材料圆柱壳轴向冲击动力屈曲可能产生的影响。

Machine annex, there are various types of hydraulic imports chuck, vice, dividing head, Four-axis, the knife device, three-coordinate measuring instrument, as well as domestically produced, imported processing aids and measuring, such as: parallel block, parallel Sizing Block, high block, such as gauge block.

机床附件方面，有各型液压进口卡盘、虎钳，分度头，四轴，对刀仪，三坐标测量仪等，以及国产、进口加工辅助工具和量具，如：平行块，平行垫铁，等高块，量块等。

In order to study the propagation of partially coherent modified Bessel-Gaussian beams passing through a paraxial ABCD optical system with hard-edge aperture,the approximate analytical propagation equation was derived with the hard-edged aperture function expanded into a finite sum of complex Gaussian functions.

为了对部分相干修正贝塞尔－高斯光束通过有硬边光阑近轴4BCD光学系统的传输进行研究，采用将硬边光阑窗口函数展开为有限个复高斯函数之和的方法，得到了近似的解析传输公式。

Using the relations between Hermite and Laguerre-Gaussian modes and expanding the window function of two-dimensional rectangular hard-edged apertures into a finite sum of complex Gaussian functions, the propagation of complex- argument Laguerre-Gaussian beams through a paraxial optical ABCD system with a rectangular hard-edged aperture is studied. An analytical propagation equation is derived and used to study the diffraction at the rectangular hard-edged aperture and the focusing properties of complex-argument LG beams.

利用拉盖尔－高斯模和厄米－高斯模的变换公式，并使用将二维矩孔光阑窗口函数展开为有限个复高斯函数之和的方法，得到了复宗量拉盖尔－高斯光束通过含矩形硬边光阑近轴ABCD光学系统的变换的解析传输公式，并对复宗量LG光束通过矩形硬边光阑的衍射和聚焦特性进行了研究。

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