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青岛市于1991年被全国爱卫会命名为灭蟑螂先进城区。达标后,我们采取了一系列行之有效措施,把蟑螂密度长期控制在国家标准以内,较好地巩固了达标成果,并顺利通
Qingdao City in 1991 by the National AIDS Society named cockroach advanced city. After the compliance, we have adopted a series of effective measures to control the density of cockroaches within the national standard for a long time to better consolidate the compliance results and smoothly