air cleanliness meaning in English

空气洁净度

Classification of air cleanliness for cleanrooms
洁净室空气洁净度的分类
Cleanrooms and associated controlled environments - classification of air cleanliness
洁净室和相关的控制环境.空气清洁度的分级
Cleanrooms and associated controlled environments - part 1 : classification of air cleanliness
洁净室和相关控制环境.第1部分:空气清洁度的分级
Cleanrooms and associated controlled environments . part 1 : classification of air cleanliness
超净间和相关受控环境.第1部分:空气清洁度的分级
Iso cleanroom and associated controlled environments - part 1 : classification of air cleanliness iso 14644 - 1 : 1999 ; german version en iso 14644 - 1 : 1999
洁净室和相关控制环境.第1部分:空气清洁度分级