方法：采用随机整群抽样方法，在上海市静安区抽取14所幼儿园306名4 ~ 6岁儿童进行了研究。
Methods: Adopting the methods of whole group sampling at random, study on 306 children aged 4-6 of 14 kindergartens in Jing an District of Shanghai.
某些这个盘区特点包括它修建与与缎精整的被挤压的铝。
Some of the features of this panel include it is constructed with the extruded aluminum with the satin finishing.
采用随机整群抽样的方法，对深圳市宝安区松岗街道的学龄前儿童进行视力测查及影响因素调查。
Preschool students were selected by random cluster sampling from Songgang street of Bao an district in Shenzhen city.
在高档碱锌用作走位剂，整平剂，能使高低区厚薄均匀一致。
In high-end alkali zinc used as an agent, leveling walk agent, can make the high and low area thick thin uniform.
在这一小区域里，氧气的消耗却是整株植物中最多的。更重要的是，我们在这发现了一种信号。
And in this small region you have the highest consumption of oxygen in the plants, and more important, you have these kinds of signals here.
采用随机整群抽样的方法，在武汉市江岸区、江汉区6所幼儿园对307名4 ~ 6.5岁儿童进行体能调查。
Using cluster sampling method, 307 preschoolers aged 4 ~ 6.5 years were sampled in Jiang 'an and Jianghan district in Wuhan, and their physical exertion were measured.
方法采取分层整群随机抽样的方法，对市内四个区11所学校的2 2 0 4名12～21岁的在校学生进行不记名问卷调查。
Methods A sample survey based on stratified probability samples of 2 204 students aged 12~21 years old among 11 schools in four districts of Shanghai was carried out.
方法采取分层整群随机抽样的方法，对市内四个区11所学校的2 2 0 4名12～21岁的在校学生进行不记名问卷调查。
Methods A sample survey based on stratified probability samples of 2 204 students aged 12~21 years old among 11 schools in four districts of Shanghai was carried out.
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