Then the paper computed the best sample rotation rate for each stratum and the whole.

再分别计算出各层的最优样本轮换率和总体的样本轮换率。

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Based on the theory and method introduced before, this paper applied the rotation models to compute the sample rotation rate of sampling survey on vacancy rate of households in Shanghai.

包括分层抽样下样本轮换的估计量公式和最优样本轮换率的确定方法。再接着利用前面介绍的理论知识，结合上海市城镇住房空置率抽样调查数据进行实证分析。

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The question of the best rate of the sample book's rotation in the sampling survey of forestry information material is arisen.

提出了在林业信息资料的抽样调查中、最优样本轮换率的问题。

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