超净间 meaning in English

ultra-clean chamber

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
Cleanrooms and associated controlled environments - part 2 : specifications for testing and monitoring to prove continued compliance with iso 14644 - 1
超净间和有关受控环境.第2部分:验证持续符合iso 14644 - 1要求的测试和监测规范