flat plate calibration reflector 平板形校准用反射器
calibration plate 校准板 ; 检定版
calibration grid plate 网格校正板
Steel columns are connected via bolts and cast-in plate and will be welded after calibration.
钢柱通过螺栓与埋板连接，校准后进行焊接。
Reference Stars: Star with known position and/or magnitude, that are used to find the plate constants and photometric calibration of an image.
参考星：已知位置和/或星等的恒星，用于确定图片的底片常数和光度校准。
Alternatively, calibration may be checked using a Polarization Reference Standard, which consists of a plate of quartz mounted in a holder perpendicular to the light path.
或者，校准可以通过使用一个偏振标准品来进行，该标准品由一片装在垂直于右侧通道的架子上的石英构成。
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