...园;二氧化碳交换 [gap=459]Key words:CO2-concentration;Vegetation ecological effects;Beijing Olympic park;CO2-exchange ...
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出于争论中心的气体是HFC-23(三氯甲烷)。 以重量交换来衡量,这种温室气体包围热量的能力是二氧化碳的14800倍。
The gas at the centre of the controversy is HFC-23, a greenhouse gas which, on a weight-for-weight basis, is 14,800 times better at trapping heat than carbon dioxide.
出于争论中心的气体是HFC-23(三氯甲烷)。 以重量交换来衡量,这种温室气体包围热量的能力是二氧化碳的14800倍。
The gas at the centre of the controversy is HFC-23, a greenhouse gas which, on a weight-for-weight basis, is 14, 800 times better at trapping heat than carbon dioxide.
对于哺乳动物,每次吸气都将富氧空气带进肺中被称为肺泡的“死胡同”。 这些在肺泡中循环的空气通过与肺毛细血管的血液进行气体交换,输进氧气并带走血液中的二氧化碳。
Air circulating through these sacs transfers oxygen into the bloodstream that picks up the blood's carbon dioxide waste.
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