通过使用重要抽样技术，提高了混合分析法的计算效率和计算精度。
The efficiency and accuracy of the mixed method are improved by the use of the important sampling updating technique.
无回答问题是抽样调查中的难点之一，它的出现直接影响着估计的精度。
As one of the difficult items in sampling survey, nonresponse directly affects the precision of the survey.
本文采用大子样、小子样抽样理论的数理统计方法，评定电阻应变计灵敏系数的精度等级。
The rank of accuracy of electric resistance strain gage factor is evaluated according to the sampling theory of large samples or small samples.
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