短語詞組短語Air bacteria contamination 空氣細(xì)菌污染air conditioning contamination 空調(diào)污染air microbe contamination 空氣微生物污染air stream contamination 氣流污染air r contamination meter 空氣污染測量儀air r contamination monitor 空氣污染監(jiān)測器air microorganism contamination 空氣微生物污染air bacteria contamination investigation 空氣細(xì)菌污染調(diào)查air r contamination indicator 空氣污染指示器 返回 air contamination