轴线

Applying elliptic integral to calculate the electric potential due to uniformly charged ring, and then gets the general expression of the electric intensity by using gradient operation.

0引言对于均匀带电圆环电位和电场分布，在许多电磁学文献中仅仅只计算了与环面垂直的中心轴线和离圆环很远区域的电位和电场，而对其周围空间任意一点的值未作讨论。

F/D! When the plane that cuts the paraboloid is not perpendicular to the axis, elliptic segment of paraboloid is gained, whose focus is not in the geometric center of the parabolic surface, but is more or less shifted towards periphery, depending on the cut angle.

当抛物面切割面不垂直于轴线，就得到椭圆形的截面，它的焦点不在抛物面的几何中心，差不多移到边缘附近，随切割角度而定。

The results of the experiment agree with the theory.TEM00 mode output in which the ellipticity is 0.98 and M2 is 1.01 was obtained.

利用实验结果指导腔调节，可使泵浦光轴线与几何腔轴精确重合，获得了椭圆率为0.98、M2因子为1.01的基模输出。

Methods 200 cases (252 knees) of total knee arthroplasty were randomly divided into two groups: Experience group (64 cases): femoral prothesis rotational certification was depended on the palpation of the femoral epicondyle axes combined with Whiteside line in operation. CT scan group (136 cases): femoral prothesis rotational certification was depended on the preoperation CT scan, by which could modulate the lateral rotation angle. The other procedure was same to the standard TKA.

将200例（252膝）TKA患者随机分为两组：①经验组（64例）：TKA术中根据术者触摸外科股骨上髁轴线联合Whiteside线联合确定股骨假体外旋角度；②CT扫描组（136例）：术前CT扫描确定股骨后髁角，术中采用可调外旋定位器复制CT确定的外旋角度，其余TKA手术操作相同。

An analytical method for the determination of electromagneticparameters of materials under test is presented by the analysis of normalized general matrix of equivalent network of a rectangular waveguide or coaxial line filled with samples.

分析了材料样品填充的矩形波导或同轴线等效网络的归一化通用矩阵，提出了一种求解材料电磁参数的解析方法。

Inner point and exterior point of a quadric and its plane of the type of contact plane;2. The article gives a way by which a quadratic curve is processed by a linkage,and then a quadric can be formed by revolving the quadratic curve as a generatrix around the axis.

提出一种利用能够生成二次曲线的连杆机构作辅助装置，将生成的二次曲线作为母线绕轴线旋转而形成旋转二次曲面的方法，从理论上进行了推导，并通过实例说明了该方法的应用。

First, the wheelset is fixed and rotated by the device used hi vehicle depot as usual. Second, the center line of wheelset axis is determined by a device called axis-center probe. Last, the acting device for sensor can draw a whole felloe profile, which is made up of parallel-pole device and rotating-probe.

鉴于此，本文给出了一种全新的测量方案：采用车辆段普遍使用的转轮器实现被测轮对的定位；采用车轴基准探尺测定被测轮对的轴线；采用并联式伸缩机构和旋转测头作为传感器的执行机构，测定轮辋断面的轮廓线。

The precision of a new project for measuring the wheelset geometric parameters is studied once again in this paper. First, the wheelset is fixed and rotated by the device used in vehicle depot as usual. Second, the center line of wheelset axis is determined by a device called axis-center probe. Last, the acting device for sensor can draw a whole felloe profile, which is made up of parallel-pole device and rotating-probe.

本文研究一种新的非接触测量方法的精度，测量方法的核心是：采用车辆段普遍使用的转轮器实现被测轮对的粗定位；采用车轴基准探尺确定被测轮对的轴线；采用并联式伸缩机构和旋转测头座，带动电涡流位移传感器扫描车轮外形轮廓线，得到相关参数。

Fourthly, the magnetic field on coil axes is calculated when coil size is changed, which guide design of probe coil.

计算了不同线圈尺寸的圆柱形线圈在其轴线上磁场，为探头线圈尺寸提供了优化。

This article is, eventually, utilizing the chart to manage a chronicle of the ancient, eastern, and western significant Stairs cases, to explore its flowing axis and focal design patterns as well as the conceptual meaning, and to verify the designing patterns which is more and more toward the "Promenade Architecture".

本文最后以图表方式整理古代，中西方重要楼梯案例之年表，探讨其动线、轴线与焦点之设计模式、表徵意义，以及证明楼梯设计之意识形态，越来越趋向「散步建筑」之设计模式……等。

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。