External respiration is the exchange of oxygen and carbon dioxide in the lungs.
外呼吸是肺中氧与二氧化碳的交换.
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In aerobic respiration , therefore, pyruvate is completely oxidized to carbon dioxide and water.
因此,在有氧呼吸中, 丙酮酸被完全氧化成二氧化碳和水.
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The two principal combustion products are water vapor and carbon dioxide.
两种主要的燃烧产物是水蒸气和二氧化碳。
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Increasing carbon dioxide in the atmosphere has a double effect on coral.
大气中不断上升的二氧化碳含量对珊瑚有双重作用.
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You can liquefy the carbon dioxide to separate it from the other constituents.
可以将二氧化碳液化，以便和其他成分分开。
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Compound M is a gaseous hydrocarbon and on combustion yields carbon dioxide and water.
化合物M是一种气态的烃,燃烧时生成二氧化碳和水.
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The lime water has turned cloudy, therefore carbon dioxide has been produced during the experiment.
石灰水变得混浊了，可见在实验中有二氧化碳生成了。
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采用二氧化碳气体掩护焊焊接. 车架经喷丸处理. 使车辆更美观、坚忍、不容易用坏.
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Plants and trees filter carbon dioxide out of the air and produce oxygen.
花草树木会过滤掉空气中的二氧化碳并制造氧气。
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The Kyoto Protocol is a commitment to reduce the amounts of carbon dioxide output.
京都议定书承诺减排二氧化碳.
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我完全赞成减少二氧化碳的排放，但是，相比发展核能，对发展风能提供补贴更容易实现这一目标。
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Under normal circumstances, these two gases react readily to produce carbon dioxide and water.
在正常情况下，这两种气体容易发生反应产生二氧化碳和水。
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The proposed initiative would mandate a reduction of carbon dioxide of 40%.
倡议将强制规定把二氧化碳排放量降低40%。
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Methane is often regarded as the second most important greenhouse gas after carbon dioxide.
甲烷常被认为是仅次于二氧化碳的重要温室气体。
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