测角仪器
测角仪器-
用非整度多面棱体检定测角仪器的数据处理与分析
Data Processing and Analysis of Goniometer Verified by Non-Integral Degrees Polygon
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经纬仪是三大常规测量仪器之一，它是用于测量水平角和垂直角的最主要的精密测角仪器。
It is the major accuracy angular measuring instrument which can measure horizontal and elevating angles .
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高精度计量圆光栅，是近代光电测角仪器和测角技术的重要基础元件。
High-precision metrological radial grating is one of the important components of the modern photoelectric angle-measuring instruments and techniques .