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.

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截面最小二乘圆心在绝对坐标系内的位置是影响圆柱度形状误差大小的重要因素。

The position of the least square center for a cross section in the absolute coordinate system is an important factor that affects cylindrical form errors.

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本文用极坐标法放样，讨论了线路曲线中任一点坐标计算公式及其近似公式的误差大小。

Using polar coordinate system to set out, the coordinate computing formula and the error of its approximate formula are discussed of any point in line.

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Now this is a little counterintuitive, because very often people underestimate the amount of calories in things, but what's important here is the-- the error, the size of the error.

这与我们的直觉有些相反,因为经常性地,大家低估了卡路里含量,重要的是,误差和误差的大小

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