板式空气—空气热交换器
plate-type air-air heat exchanger
车内空气质量
in-car air quality
air quality in the vehicle
城市空气质量数值预报系统
city air quality numerical prediction system
城市空气质量周报
the urban air quality weekly
对水质和空气质量的影响
impact on the quality of the water and the air
多参数空气质量分析仪
multiparameter air quality analyzer
改善空气质量
Improvement on air quality
国家环境空气质量标准
national ambient air quality standard
国家环境空气质量目标
national ambient air quality objective
国家空气质量标准
national ambient air quality standards
环境空气质量
ambient air quality
environmental air quality
air quality
quality of atmosphere
air environmental quality
atmospheric environmental quality
quality of air-environment
环境空气质量标准
ambient air quality standard
ambient air quality
环境空气质量和谐度
Harmonious Degree of Ambient Air Quality