城市空气质量水平是以空气质量指数(API)来表征的，API的时空变化可以反映城市空气质量的变化过程。
Urban air quality level is token by air quality index (API), whose spatiotemporal change can reflect the change of urban air quality.
这些将以现有的世卫组织室外空气质量指南以及最近出版的世卫组织关于特定室内污染物水平的指导意见为基础。
These build upon existing WHO outdoor air quality guidelines and recently published WHO guidance on levels of specific indoor pollutants.
天气预报表明，周三伴随着强风的来临空气质量将回归正常水平。
Weather forecasters say air quality will return to normal this Wednesday following forecasted strong wind.
随着生话水平的提高和生活方式的改变，人们在室内生活的时间越来越长，室内空气质量的优劣直接影响到人们的工作和生活。
As the improving of living standard and changing of life style, people spend more and more time inside the room, thus the quality of indoor air directly affects people's work and life.
年平均污染水平是衡量空气质量的最常用指标之一。
Annual average pollution levels are one of the most commonly used scientific measurements of air quality.
由于我国目前的研制水平有限，空气质量自动监测系统基本上是靠引进国外技术及设备来完成的。
Because the technological level in our country is limited now, we have to introduce technology and equipment from foreign countries to complete the automatic air quality monitoring system.
监测应包括，但不限于：空气质量、噪音水平、化学品暴露及镭辐射等。
The surveys will include, but not be limited to air quality, noise level, chemical exposure and laser operations.
改善北京地区的空气质量是“绿色奥运”的重要组成部分，在目前的经济、交通以及经济增长的水平下，这将是一个巨大的挑战。
Part of the concept of the "Green Olympics" is to improve air quality in the Beijing area. Given the level of economic activity, traffic, and the pace of economic growth, this is a big challenge.
为了要保证空气质量，在玻璃花园正面的开口技术水平高，是被建筑机械系统控制的而且是自动化的。
In order to guarantee air quality, the high-level openings in the glass garden facades are motorized and controlled by the BMS.
目的研究北京地区儿童ORMDL3基因表达水平、生活方式、室内空气质量与哮喘发生的相关性。
ObjectiveTo Study whether ORMDL3 expression level, life-style and indoor air quality were associated with childhood asthma in Beijing, China.
将多污染因子评价归结于单目标决策，比较直观地反映出某区域环境空气质量综合水平及污染程度。
When the multi-ingredient pollution if transformed into the single-object decision, the results could directly show the integrative level and pollution degree of a certain area air quality.
作为对新的空气质量标准的响应，包括上海、南京在内的一些城市宣布，他们正在准备试点计划，很快将开始监测、发布PM 2.4水平。
Responding to the new air quality standard, several cities, including Shanghai and Nanjing, announced that they are preparing pilot programs that will start to monitor and publish PM 2.5 levels soon.
作为对新的空气质量标准的响应，包括上海、南京在内的一些城市宣布，他们正在准备试点计划，很快将开始监测、发布PM 2.4水平。
Responding to the new air quality standard, several cities, including Shanghai and Nanjing, announced that they are preparing pilot programs that will start to monitor and publish PM 2.5 levels soon.
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