By using the light ray vector method, the elliptic-section cylinder lenses have been designed to collimate the semiconductor laser beam.
采用光线矢量法设计了两个相互垂直的椭圆截面柱透镜组来准直半导体激光束。
The whole formula for the reflected ray vector of the right Angle prism is derived. Based on it, the influences of the prism laying and Angle errors on azimuth aiming accuracy are discussed.
给出了直角棱镜反射光矢量的完整表达式，在此基础上讨论了棱镜放置误差和角度误差对方位瞄准精度的影响。
To study ray (vector) analysis and pixel (grid) analysis which are applied in the calculation of field strength of radio coverage, and compare their differences and characteristics.
研究无线覆盖场强计算中使用的射线分析法(矢量法)与像素分析法(栅格法)，并比较二者的区别和特性。
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