rectangular prism

Aim To investigate the rectangular prism used as aberration-free laser attenuator under different incident conditions.

目的研究在不同入射边及入射点位置条件下，将直角棱镜用作无畸变激光衰减器所需满足的条件。

The effect of active grid turbulence on the derivatives of thin plate section model, section model of rectangular prism and streamline model with box girder section are investigated by the forced vibration method.

采用强迫振动法研究了主动格栅紊流对理想薄平板，矩形钝体断面以及流线型箱梁断面颤振导数的影响。

Application of Gas Sensor Based on Rectangular Prism in the Monitoring of Atmospheric Visibility

基于直角棱镜的气体传感器在能见度测量中的应用

Terrain effect of 1: 50000 gravity prospecting result in mountainous region is removed by respectively using slope-top trihedral prism model and rectangular prism model in near, mid and far areas.

分别用斜顶三棱柱体及方柱体模型分近、中、远区对某山区1：5万高精度重力勘探成果进行地形改正。

Photometric Measurement Based on Rectangular Prism with Optical Fiber

基于直角棱镜的光纤光度传感器

The structure substituted rectangular prism for common quarter wave, and improved the stability of the optical voltage transformer.

该结构用直角棱镜代替了普通的四分之一波片，提高了光学电压互感器的稳定性。

Next, the crack-cutting method [ 5] is firstly extended to solve the torsion problem for a rectangular prism. The numerical results show that the method presented here is successful.

此外，本文还首次将裂纹切割法推广用于求解矩形柱的扭转，数值结果表明方法是成功的。

180 ° rectangular prism. The Moire fringe which is formed by an optical lattice and Talbot image is taken as the criterion for collimation.

180°直角棱镜，使光栅产生的Talbot像与光栅自身产生Moire条纹，通过判断Moire条纹的取向来检验激光的准直性。

Using the large eddy simulation ( LES) technique, quasi three-dimensional ( quasi 3D) and three-dimensional ( 3D) simulations of the velocity fields surrounding a rigid rectangular prism at the Reynolds number of 2.2 × 104 are conducted.

采用大涡模拟（LES）方法对雷诺数为2.2×104的方柱绕流流场进行了数值模拟。

Investigation of the Rectangular Prism Used as Laser Attenuator

直角棱镜用作激光衰减器的研究