▁▂▃▄▅▆▇█论文摘要翻译！谢谢█▇▆▅▄▃▂▁

来源：百度知道 编辑：UC知道 时间：2024/05/26 23:33:40
空气质量在优良之间，但对比2002年底XX城市控制区大气污染物本底浓度，NO2和SO2的浓度分别增加了73％和214％，污染速度甚忧，应引起重视。

急需~求助好心人！200分~

Between air quality, but by the end of 2002 compared to 20 urban areas under the control of background concentrations of air pollutants, nitrogen dioxide and sulfur dioxide concentrations increased by 73% and 214% of the rate of pollution is very bad, it should be noted

Between the air quality in the fine, but by the end of 2002 compared XX-controlled areas of urban background concentrations of air pollutants, NO2 and SO2 concentrations were increased by 73% and 214%, the speed of very bad pollution, should be attention.