位置矢量 meaning in English
position vector
radius vector
Examples
- According to the theory of light transmission , we derived the expression of rotation angle as a function of the dielectric constant conductivity of er fluid , and ( the angle between the electric vector of linearly polarized light and electric field ) from maxwell ' s equations and fresnel reflection , on the condition of several appropriate approximations and assumptions
进而导出了非均相结构电流变液在外电场与光场交互作用下旋光角与(入射线偏振光振动方向与外加电场方向间夹角)及参数(为外加电场e 、分散颗粒介电常数、体积分数、绝缘油介电常数、位置矢量( ? )等量的函数)的西北工业大学应用物理系硕士学位论文摘要理论表达式。 - The research on autonomous navigation and orbital keeping technology of geosynchronous satellites : selecting position vector in the inertia space and longitude , latitude , radial errors in the hill equation as state variables , the precision of orbit determination caused by track dynamic model error , sampling period , and sensor measurement and install error is analyzed
同步卫星自主导航与轨道保持技术研究：分别选取惯性空间位置矢量和采用hill方程表示的经、纬、向径误差作为状态量，分析轨道动力学模型误差、采样周期以及敏感器测量、安装等误差对定轨精度的影响。 - Abstract : in this paper ， a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon . some basic equations of dual beam scan are derived ， such as ， the position vector for the incident point ， the scalar expression for reflected ray ， scan pattern on observation plane ect . the far - field asymmetry of the scanning field has been discussed
文摘:应用几何光学理论研究了多光束转镜扫描场的非对称性，导出多光束扫描入射点位置矢量、反射线标量表达式、观察面上的扫描轨迹方程，并研究了扫描远场的非对称性。 - The main work completed in the paper is listed as following : 1 . image function acquisition - , 2 . read bmp files by dib format ; 3 . drawing gray scale histogram ; 4 . choose a optimum threshold and make gray image become binary image - , s . find image ' s contour points by making inner points become empty and apply template matching on the contour points ; 6 . transform the object ' s beginning points ( pixel point ) to the ones in the image coordinate and the positions of in the corresponding three dimensions ; 7 . compute the position vector and the normal vector of the object
选择一个最佳阕值，把灰度图像进行二值化处理； 5用掏空内部点法，找到图像的轮廓点，然后在轮廓点上进行模板匹配； 6把输出的目标物开始点(像素点)转化成图像坐标系中的点和对应的三维空间的坐标位置； 7计算目标物的位置矢量和法向矢量，根据机器人抓取面的法向矢量，找到机器人要抓取的平面； 8