呼吸区 meaning in Chinese

regio respiratioria
region respiratoria
regiones respiratoria
respiratory region

Health and safety in welding and allied processes - sampling of airborne particles and gases in the operator ' s breathing zone - part 1 : sampling of airborne particles
焊接和相关工艺的防护和安全.工作人员呼吸区空气粒子和气体的取样.第1部分:气体粒子的取样
The result showed that the contamination situation in the lower zone of the office , i . e . the zone of occupants , was affected by of that of supply air . the supply air contamination should be kept to a low level in order to provide a good indoor air quality . however , the variation of the supply pollutant concentration has no influence on the indoor contaminant distribution of such system
本文针对气态污染物，研究了不同送风浓度对系统的影响，结果表明：置换通风房间的下部区域受送风污染物浓度的影响较大，人的工作区恰好处于该区，实践中需要控制好送风浓度以保证人呼吸区的空气品质；但是送风浓度的变化并不影响置换通风下污染物的分层分布的特点。