The radius vector of each solid is always a positive length.
每个立体的矢径总是正值长度。
Making use of the moment vector and radius vector of rotation, the lateral buckling of thin-walled members are analyzed.
以弯矩矢量和转角向径为工具，分析了薄壁构件的弯扭屈曲。
With the help of the simple mathematical method, another transformation formula of coordinates and time between the radius vector equations in inertial frames is derived in the paper.
本文运用简单的数学方法推导出惯性系矢径方程的另一种坐标和时间变换式。
This graphics object can be used to do vector drawing on the Sprite. For example, see the code to draw a circle of radius 5.
这个图片对象可被用来在sprite上进行矢量作图。
So, for a sphere, the normal vector is divided by the radius of the sphere.
关于球体，法向量是,除以球的半径。
We have a sphere of radius a. I have my vector field.
先作出半径为a的球面，再画出给定的向量场。
The normal vector of each data point is calculated without reconstructing surface, and then realizing radius compensation with probe radius by going along normal vector.
在不需要重建曲面模型的情况下，找到每一个数据点的法矢，在该法矢方向上补偿一个球头半径实现了测头半径的三维补偿。
Evolutions of the mean square radius of gyration, the mean square end-to-end distance and the autocorrelation function of the end-to-end vector are simulated.
通过计算，研究了单链高分子的均方回转半径、均方末端距以及末端距向量自相关函数随时间的演化过程。
Evolutions of the mean square radius of gyration, the mean square end-to-end distance and the autocorrelation function of the end-to-end vector are simulated.
通过计算，研究了单链高分子的均方回转半径、均方末端距以及末端距向量自相关函数随时间的演化过程。
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