This article suggests a model for weighted least squares estimate for spherical surface measurement with polar radius method.
本文给出了基于极径法球面测量的加权最小二乘估计模型，并依据该模型进行测量采样点布局的优化设计。
Third, argument-polar radius curve of polar coordinate system whose pole is geometric gravity is formed, and maximum and minimum value points are searched.
然后以重心为极点，对边缘点极坐标化，形成幅角-极径曲线，在该曲线上寻找局部极大极小值点。
In other words, if according to the proportion of production with a radius of 30 cm of the globe, so its equatorial radius and the polar radius is only a difference of 1 mm!
换句话说，如果按照这个比例制作一个半径30厘米的地球仪，那么它的赤道半径和极半径仅相差1毫米！
If I now say, I'm going to go ahead and change the radius of this, something, my polar form did it right, but what happened to the Cartesian form?
如果我现在说，我要去改变这里的半径，一些这样的操作，我的极坐标形式，进行了正确的改动？
The polar equation of non-circular gear pitch curve, calculation method of center distance, formula of pitch curve length, primary circle radius and pressure Angle is given.
给出了非圆齿轮的节曲线极坐标方程，两齿轮中心距的计算方法，节曲线长度、基础圆半径和压力角的计算公式。
Radius and orbital velocities can be directly expressed as functions of time or polar angle, which is helpful for designing flight mission and motion trajectory.
这种方法可直接获得向径、轨道速度等参数随时间或极角（绕地心的转动角）的变化，便于分析轨道转移与逃逸运动，有助于飞行使命与运动轨迹的设计。
The plane single-footprint was coarse matched by polar-radius invariant moment as descriptors in this paper.
采用极半径不变矩作为描绘子对平面单足足迹进行粗匹配实验。
The plane single-footprint was coarse matched by polar-radius invariant moment as descriptors in this paper.
采用极半径不变矩作为描绘子对平面单足足迹进行粗匹配实验。
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