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- PM10污染指数PM10 pollution index
- PM10污染PM10 pollution
- PM10污染特征PM10 pollution characteristics
- 指数index
- 污染pollution
- 污染指数pollution index
- 上证指数Index of Shanghai Stock Exchange
- 环境污染environment pollution
- 指数的exponential
- 污染的infectant
- 指数函数quantity in the exponent
- 白色污染white pollution
- 股票指数share index
- 无污染free from contamination
- 噪音污染noise pollution
- 大气污染atmospheric pollution
- PM10重污染PM10 heavy air pollution
- 污染环境pollution of the environment
- 污染指数法contamination index method
- 利用北京空气质量监测资料和NCEP再分析资料,分析了北京发生PM10重污染的天气形势。PM10 heavy air pollution events(API great than 3 grades) in Beijing area have been researched by analyzing air quality data and NCEP reanalysis data.