Check method: according to the batch sampling, send the quality inspection agencies inspected.
检查办法：按批次抽样，送质量检测机构进行复检。
Method: Using stratified cluster sampling, sampling an elementary school respectively in the city and countryside, carries on the check by sight and the correlation factor investigation.
方法：应用分层整群抽样方法，在城市、农村小学中各抽取一所小学，进行视力检查及相关因素调查。
Method Sampling and bacterial residue check were used to the public articles of 14 apartments in Taiyuan railway bureau.
方法采用现场抽样检测方法，对太原铁路局管辖14所公寓的公共用品消毒质量进行检测。
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