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- The origin in a polar coordinate system;the vertex of a polar angle. 极点一个极坐标系中的始端；一个极角的顶点
- The origin in a polar coordinate system; the vertex of a polar angle. 极点一个极坐标系中的始端；一个极角的顶点
- The model is continued by imposing a polar coordinate system on the moving reference frame. 通过把极坐标系作为该运动参照系而继续对模式进行积分。
- The polar coordinate is used in structured grid and Cartesian coordinate in unstructured grid. 同时采用结构化网格和非结构化网格进行数值计算 ,其中结构化网格采用极坐标 ,而非结构化网格采用笛卡尔直角坐标。
- This paper proposed a new type of feature extraction arithmetic for texture image, based on parametrical log polar translation.This arithmetic is robust to geometric distortions. 摘要提出一种细化参数的对数极坐标变换图像纹理特征提取算法，可以有效地消除旋转、缩放和平移等几何形变的影响。
- Last part is CORDIC module, and we use it for transferring rectangular coordinate to polar coordinate. 最后的CORDIC模组，使用CORDIC演算法来进行直角座标与极座标之转换。
- It also discussed how to implement road construction survey and staking-out using polar coordinate method. 并对如何利用极坐标法进行道路施工测量放样作了论述。
- Firstly, the orientation workspace of the parallel machine tool is described with the polar coordinate. 首先用极坐标来描述并联机床的姿态空间；
- We carry out a transformation to spherical polar coordinates. 我们变换成球极坐标。
- The practice indicates the relative datum 3D polar coordinate method has several advantages, such as, high efficiency, high automation and high precise etc. 实践证明，与传统的方法相比，该方法具有方便、高效、精度高等特点。
- In order to realize CT fast reconstruction on an ordinary PC, a fast reconstruction process using look-up table and polar coordinate back-projection was presented. 为了在普通PC机上实现计算机断层扫描 (CT)快速重建 ,提出了利用查找表和极坐标反投影快速重建方法。
- A set of formulas for analyzing high-order modes of coaxial lines with arbitrary section in polar coordinate by the method of lines are rigorously derived in this paper. 本文应用直线法理论严格推导了在极坐标系统中分析任意截面形状同轴线高次模的公式。
- Thus, the rotor's dynamic balance is realized finally with the resultant force in revolving polar coordinate while rotating electromagnetic force is vanished. 同时，时空旋转电磁力消失，转子系统在极坐标合成力的作用下实现最终动平衡。
- The CORDIC algorithm is adapted to convert the polar coordinate image to the rectangular coordinate image, while cubic spline interpolation is used to interpolate the vacant pixels. 本文采用数字坐标旋转(CORDIC)算法将极坐标图像转化为直角坐标图像，并采用三次样条插值的方法对漏点进行弥补。
- In order to satisfy the demands of the main pylon measure benchmark stakingout and the cable anchor-pipe positioning for cable-stayed bridge, a new Georobot relative datum 3D polar coordinate method is presented. 摘要结合斜拉桥索塔基准放样及斜拉索预埋钢管的精密定位的需要，提出了一种新的基于测量机器人的三维相对基准放样方法，并成功用于灌河特大桥斜拉桥主桥的施工放样。
- A method of measuring contrate involute errors of double gears, gear shapers and gear shavers on the CZ450 gear integrated error tester using the polar coordinate method is introduced. 介绍了在CZ450齿轮整体误差测量仪上利用极坐标法测量双联齿轮、插齿刀和剃齿刀的端面渐开线齿形的方法,从而扩展了CZ450的测量功能。
- The two systems of government are polar opposites. 这两种政体正好相反。
- Do you know how to log in to the system? 你知道怎么登录进入这个系统吗？
- Effects of the reference quantity deviation, probing and positioning errors on the accuracy of gear involute measurement by the polar coordinate measuring system are analyzed by the methodology. 从方法论的角度分析了极坐标法齿轮测量系统的标准量、瞄准、测微和定位误差对渐开线齿形测量精度的影响。
- According to the user-provided error-tolerance threshold and spatial data correlation Markovian model, the algorithm divides the event sensing range into dummy polar coordinate equal layer. 算法根据用户要求的误差门限及结合节点数据的空间相关性马尔可夫模型，将事件感知区域划分成虚拟极坐标等价层。
