... collimator resolution 准直器分辨率 collimator set 准直仪设备 collimator sight 视准式瞄准具 ...
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With a collimator and a 23 polyhedron as measuring datum, a set of optical angular encoder measuring data, which containing the eccentricity error, was obtained.
以平行光管和23面棱体为基准，得到存在偏心误差的一组光栅角编码器测量数据。
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