通过将按照(720/N)度的间隔抽样的时间参数(CRME)的平均值除以所抽样的时间参数(CRME)，计算误差比率(KCRERR)，根据误差比率(KCRERR)计算学习校正系数(KCRREF)。
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所有报告的样本误差比率包括了加权和抽样设计设计效应计算在内。
All reported margins of sampling error include the computed design effects for weighting and sample design.
结果表明：用该方法校准的分压箱，比率误差为10-7量级。
The ratio error of the divider calibration with this method is at 10-7 order magnitude.
给出了分子已知情况下比率估计量的偏差和均方误差以及均方误差的估计，并对两类比率估计量进行了比较。
In this paper, the bias of the ratio estimator and the estimate of mean square errors of this estimator with known numerator have been compared and discussed.
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