这些污染物，尤其是臭氧和煤烟，不像二氧化碳那样悬浮在大气中。
These are pollutants, particularly ozone and soot, that do not hang around in the atmosphere as carbon dioxide does.
他们还发现新的气溶胶颗粒——悬浮在大气中的超细颗粒——可以在这个高度形成。
They also found that new aerosol particles - ultrafine particles suspended in the atmosphere - can form at these heights.
这些微粒没有到达大气的最高层，并且不可能长时期悬浮在空气中而影响全球气候。
Those particles haven't reached the upper levels of the atmosphere and are unlikely to hang around for a long time or affect the global climate.
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