原理上定心误差在光传播和光反射里是可测的。
In principle centring errors are measurable in transmitted light and in reflection.
CCD测光观测中积分时间的选取，对测光结果的误差大小有很大影响。
Integration time is important to error of photometrical results in CCD photometric and observation.
针对线结构光扫描测头多项式拟合测量模型的系统误差问题，提出了一套用于该测头系统误差提取与补偿的方法。
For polynomial fitting measuring model of a linear structured light scanning probe, the extraction and compensation methods for systematic errors of the probe are presented.
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