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经检测,1990~1992年重庆地区所生产卫生用品细菌污染逐年下降。不同卫生用品细菌总数合格率以及6种卫生巾间细菌总数均无显著性差异。
After testing, bacterial contamination of sanitary products produced in Chongqing from 1990 to 1992 decreased year by year. There was no significant difference in the total number of bacteria in different sanitary products and the total number of bacteria in the 6 sanitary napkins.