自然进风 meaning in English

natural air inlet

Static smoke extraction system
自然进风式排烟系统
Deals with heating , natural smoke extraction and natural ventilation problems
摘要探讨了地下汽车库的供暖、自然排烟、自然进风问题。
Discusses the feasibility of natural smoke extraction and the parameter in detail and the conditions of natural ventilation
讨论了自然排烟的可行性及相关参数的量化和自然进风的条件。