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The Indian Express
10 小时
Can discrepancies in AQI calculations be behind Punjab’s ‘unreal’ poor air
With temperature inversion affecting all of Punjab ... Regarding the placement of only one AQI monitoring device per city, he ...
Clean Tech
10 小时
How to Determine Total Bound Nitrogen (TNb) in Water
Parameter total bound nitrogen (TNb) is a recognized limitation in the analysis of water for assessing and monitoring the ...
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今日热点
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UFO House hearing
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Bitcoin rises above $90K
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