目前，污染物测量是在一个城市的多个不同地点进行测量的，然后数据会合计成一个数字(空气质量指数)最后在网站上每天发布一次。

Currently, pollutants are measured at different stations in a city and that data is aggregated to a single number (the air quality index) and published once a day on a website.

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目前在欧洲和北美一些城市中肺功能减弱现象的增加也与目前测量(或观察到)的二氧化氮的浓度有关。

Reduced lung function growth is also linked to NO2 at concentrations currently measured (or observed) in cities of Europe and North America.

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在典型的城市交通情况下，对雷达测量值添加上每个受检目标(如车辆)的横向速度分量是很有意义的。

In typical city traffic situations the additionally to the radar measurement even the lateral velocity component of each detected target such as a vehicle is of large interest.

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