质量评估与控制QAC ?
另一部分则涉及度量:规则、政策和允许评估产品质量与进度的控制机制。
The second component relates to measurement: rules, policies, and control mechanisms that enable people to assess product quality and progress.
颗粒物浓度监测不仅是评价城市空气质量的基础,而且是进行城市污染控制与环境健康效应评估的重要依据。
Monitoring of particulate matter concentration is the basis for urban air quality evaluation and pollution control, and also very important for health effects assessment.
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