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.
退休效应——由低(高)人口增率导致的个人超过65岁人口构成的增(减)的百分比率。
Retirement effect — the increase (decrease) of the percentage of the population composed of individuals over 65 years of age induced by a low (high) population growth rate.
本文通过所建立的采样比率模型对多目标的距离闪烁效应进行了理论分析，并从回波频谱畸变的角度解释了其物理本质。
In this paper, the range glint is analyzed in theory through the model of sample ratio established, and then its physical essence is also expatiated using echo spectrum aberration.
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