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在中国预防医学科学院的组织和指导下，我们于1997年10～12月开展了电话和卡拉OK话筒的污染水平和检验方法的研究。结果表明该采样方法及检测方法能准确反映实际污染水平，具有可靠性，是一种值得推广的简便易行的方法。消毒后三类话筒细菌污染水平显著低于消毒之前（均为P＜0．01）；说明所采用的消毒方法能起到显著的消毒作用。结果还表明2％921消毒剂的消毒效果显著高于75％酒精这种常见的消毒剂，故值得推广使用。
With the organization and guidance of the Chinese Academy of Preventive Medicine, we conducted a study on the pollution levels and testing methods of telephone and karaoke microphones in October-December 1997. The results show that the sampling method and detection method can accurately reflect the actual level of pollution, with reliability, is a worthy promotion of simple and easy way. After disinfection, the levels of bacterial contamination of the three types of microphones were significantly lower than those before disinfection (both P <0.01), indicating that the disinfection method used could play a significant disinfection role. The results also show that 2% 921 disinfectant disinfection was significantly higher than 75% alcohol, a common disinfectant, it is worth promoting the use of.