“这些微细颗粒物是影响可见度，让天空看起来雾茫茫的原因，”康奈尔空气质量专家威斯·特达说，“它也是最直接影响健康的因素。”
"The fine particulate matter is what affects visibility and makes it look like a horrible foggy day," said Cornell air quality expert Westerdahl. "it also is what most directly affects human health."
并对影响城市空气质量的5个主要因素进行主成分分析，找出最能代表原来数据信息的2至3个因子代替原来的5个变量。
Then 5 main factors affecting urban air quality to principal component analysis identify the most representative of the original data instead of the 2 to 3 factors 5 variables.
摘要：本文针对我国城市的空气质量现状及影响城市空气质量的主要因素进行分析研究。
Abstract: This article mainly analyze urban air quality present situation in China and the key factors affecting urban air quality study.
综述了大气污染物区域环境容量的主要影响因素、用于其计算的空气质量模型以及大气环境容量的研究步骤。
The main affection factors, the atmospheric quality models and the usual computing proceed of the atmospheric pollutant environment capacity of the area were summarized.
目的探讨影响无菌贮存室空气质量监测超标因素，提高无菌贮存室的空气质量。
Objective To investigate factors affecting the air quality of sterile storeroom and to improve the air quality of sterile storeroom.
眼表蒸发受多种因素影响，如眼表温度、睑板腺功能、环境湿度与空气质量、暴露性眼病和角膜接触镜的配戴等。
Evaporation is affected by many factors such as temperature of the ocular surface, function of the Meibomian gland, relative humidity, air quality, exposed eye diseases and wearing of contact lens.
甲醛是影响农村民居室内空气质量的主要因素。
The formaldehyde was a main factor influencing the indoor air quality of rural local-style dwelling houses.
目的探讨影响无菌贮存室空气质量监测超标因素，提高无菌贮存室的空气质量。
Objective to investigate factors for the air supervision of sterile storeroom and improve air condition of sterile storeroom.
目的了解影响广州地铁室内空气质量的主要因素。
Objective to analyze the in-doors air condition and the factors affecting the air quality of Guangzhou metro.
介绍了室内空气质量的基本概念，讨论了影响室内空气质量的因素和室内环境中污染物来源、特点及危害；
This paper introduces the basic concepts of indoor air quality and discusses the factors affecting indoor air quality and the sources, characteristics and harms of indoor air pollutants.
介绍了室内空气质量的基本概念，讨论了影响室内空气质量的因素和室内环境中污染物来源、特点及危害；
This paper introduces the basic concepts of indoor air quality and discusses the factors affecting indoor air quality and the sources, characteristics and harms of indoor air pollutants.
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