Application of Axicon in Active Geometric Optical Measurements;
旋转棱镜在主动式几何光学测量法中的应用
In this paper,transformation properties of semi convex axicon for beams is analyzed in detail.
本文对半凸旋转棱镜对光束变换进行了详细的理论分析，定量计算了变换光束的空间强度分布。
The diffraction-free beam produced by an axicon has constant size and intensitydistributions.
由旋转棱镜（ａｘｉｃｏｎ）器件生成的无衍射光束（ｄｉｆｆｒａｃｔｏｎ－ｆｒｅｅｂｅａｍｓ）横截面上的光强分布具有传播不变性，因而具有相当广泛的应用前景。
lens turret
(摄影机或电视机上的)透镜旋转台
A rotating device holding various lenses, as for a microscope, allowing easy switching from one lens to another.
透镜旋转盘一种装有各种透镜的可旋转装置，如显微镜上的，可以使转换透镜变得很容易
The method of probe vibration for measuring the axial field distribution of rotationally symmetric magnetic lens
探针振动法测定旋转对称磁透镜的场分布
THE LOCATION FIXING OF THE BASIC POINT AND BASIC SURFACE OF THE ROTATIONAL CONICOID LENS;
旋转二次曲面透镜基点和基面的位置确定
A research on the characteristic of the refraction-reflection system composed of rotational conicoid thin lens and flat mirrors
旋转二次曲面薄透镜与平面镜组成的折反光学系统的性质研究
a mechanism for revolving the turntable
旋转台 [转盘] 的旋转装置
A third layer transverse cellulose strands is indicated as the microscope stage is rotated.
如将显微镜载物台旋转，便能从纤维横断面中看到第三层胞壁。
swing a telescope through 180
把望远镜旋转180度
All three of them use mirror, not lenses at the front.
这三台望远镜前部用的都是曲面镜而不是透镜。
rotating loop statio
旋转环形天线信标台
revolving beam station
旋转波束无线电信标台
turntable ladder special crew
旋转台钢梯车特别队
re-qualification of turntable ladder operator
旋转台钢梯车操作复试
a surveying instrument having a short telescope fixed to a horizontally rotating table and a spirit level.
由固定在水平的旋转的工作台和一个水平仪上的短望远镜组成的测量仪器。
All tubes also remain perfectly flexible so that in polarized light applications the microscope table can still be rotated.
所有的连接管保持柔性，保证在偏光下使用时，显微镜载物台仍然可以旋转。
Study on Field Rotation of 1.2m Alt-Az Telescope and Elimination of Image-Rotation;
1.2米地平式望远镜视场旋转研究与消旋
Turn the lens in the direction shown by the arrow until it clicks into place
按箭头方向旋转镜头直到听见咔嗒声。
She turned first one way, then the other, looking at herself in the bureau mirror.
她在镜台前转过来又转过去打量自己。