The second fugitive dust about vehicle is an important source of air pollution in northern city of China, the measure and calculation methods need to be developed and researched.
机动车行驶过程二次扬尘已成为中国北方城市扬尘污染的重要来源，有关机动车二次扬尘量化计算亟待研究开发。
The article analyzed the spatial distribution features and regularity of fugitive dust source in Shanghai urban district by using remote sensing images.
利用遥感影像资料，分析了上海市扬尘污染源的空间分布特征与规律，并计算了上海市主要扬尘源的起尘量。
The Spanish police's specialist fugitive section was yesterday checking old people's homes and looking for elderly Germans with private nurses in the Alicante region, an official source confirmed.
西班牙警方追缉逃犯的特别小组昨日在检查搜索老人公寓，寻找在阿利坎特地区拥有私人护士的德国老人，一个官方的消息来源也确认了这样的说法。
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