We randomly selected 806 children under 6 years of age from 45 primary anganwadi (childcare) centres in Chandigarh, Punjab, India, that were chosen through multistage stratified random sampling.
在印度旁遮普省昌迪加尔的45所托儿所(anganwadi)中心采用多级分层随机取样法选择了806名6岁以下儿童。
Multistage realization is one of the most efficient methods to change the sampling rate of signal.
多级实现是改变信号采样速率最有效的方法之一。
Multistage stratified cluster sampling method was used for the sampling.
采用多阶段整群分层抽样方法。
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