住房空置率是指某一时刻空置房屋面积占房屋总面积的比率。空置率主要用在国内，与国外的空房率不同。空房率指的是开发商建好房子后，空置的房子与建成的房子之比。起因于网友拿黑灯照片尝试“证明”住房空置率，一时间住房空置率成为公众关注的焦点问题。
核心通胀率的这一段下跌很大程度上归因于房租的下跌，而现在房租有了上涨的势头，因为住房空置率开始下降。
Most of that drop has been because of falling rents, and they now appear to be headed higher again as apartment vacancies start to drop.
消化在很短的时间就万点零零万平方米空置住房不是一项容易的任务事实上，有多高的住房空置率下降，杨教授有他自己的看法。
To digest in a short time on one hundred million square meters of vacant housing is not an easy task indeed, how high housing vacancy rate down, Professor Yang has his own views.
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。
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.
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