“九一八”被视为中华民族的国耻日,为增强市民国防观念和人防意识,熟知防空警报信号,检验城市防空警报技术性能,在9月18日这一天,全国许多城市都会进行人民防空警报试鸣。其作用是在空袭的情况下,告知市民及时采取防护措施,减少生命和财产损失。平时也可用于发布防灾警报,为抢险救灾服务。 September 18 is regarded as the national shame of the Chinese nation. In order to enhance public awareness of national defense and awareness of air defense, familiarize yourself with the signals of air defense warnings and test the technical performance of urban air defense warnings, on September 18, many cities across the country will proceed People’s air defense warning test. Its role is to inform the public to take timely protective measures in the event of an air strike to reduce the loss of life and property. Usually also be used to release disaster prevention alerts for disaster relief services.