溶解的二氧化碳使水更具酸性。
发言人称二氧化碳的含量很高。
A spokesperson commented that levels of carbon dioxide were very high.
人吸入氧气，呼出二氧化碳。
工业化国家必须减少二氧化碳的排放。
Industrialized countries must reduce carbon dioxide emissions.
燃烧化石燃料消耗氧气并产生二氧化碳。
Burning fossil fuels uses oxygen and produces carbon dioxide.
减少大气层中的二氧化碳含量极其重要。
Reducing levels of carbon dioxide in the atmosphere is of critical importance.
你可液化二氧化碳以使它与其他成分分离。
You can liquefy the carbon dioxide to separate it from the other constituents.
这个倡议将把二氧化碳排放量强制降低40%。
The proposed initiative would mandate a reduction of carbon dioxide of 40%.
植物从空气中吸收二氧化碳，从泥土中吸收水分。
Plants absorb carbon dioxide from the air and moisture from the soil.
通过此切口，二氧化碳气体把胸腔充得肿胀起来。
Through this incision, the abdominal cavity is distended with carbon dioxide gas.
二氧化碳之类气体的排放应该被控制在目前的水平上。
The emission of gases such as carbon dioxide should be stabilized at their present level.
火星周围有一个薄薄的大气层，几乎全由二氧化碳构成。
Mars has an insubstantial atmosphere, consisting almost entirely of carbon dioxide.
相比之下人类燃烧煤、石油等活动所释放的二氧化碳的量是少的。
The amount of carbon dioxide released by human activities such as burning coal and oil is small in comparison.
事实上，它主要是二氧化碳。
但如今，潜在的问题是二氧化碳过多。
Today, however, the potential problem is too much carbon dioxide.
燃烧化石燃料会向大气中排放二氧化碳。
Burning fossil fuels releases carbon dioxide into the atmosphere.
燃烧甲烷产生二氧化碳，然后释放到大气中。
The burning of methane generates carbon dioxide that is released into the atmosphere.
我们不能让大气中的二氧化碳无限制地升高。
大气中的二氧化碳和甲烷阻止热量向太空散发。
Carbon dioxide and methane in the atmosphere block the escape of heat into space.
他们忘记了二氧化碳产生的其中一个关键原因。
我想是二氧化碳吧。
树木可以吸收空气中的二氧化碳，阻止全球变暖。
这种化合物加热后会排出二氧化碳，产生氧化钙。
Heating this chemical compound drives off carbon dioxide gas, leaving calcium oxide.
城市在应对气温上升和二氧化碳增加方面做得更好。
Cities do better in fighting against rising temperatures and increasing CO2.
耕作翻土会释放二氧化碳，而运输车辆会排放废气。
Soil tilling releases carbon dioxide, and delivery vehicles emit exhaust.
其结果会是二氧化碳和其他温室气体的排放量增加。
The result would be higher emissions of carbon dioxide and other greenhouse gases.
如今科学家们发现光污染几乎和二氧化碳污染一样有害。
Nowadays scientists are finding light pollution can be almost as bad as carbon dioxide pollution.
科学家表示，二氧化碳的规模排放将需要大量的长期储存。
Scientists say that the scale of CO2 emissions will require vast amounts of long-term storage.
排放过多温室气体，如二氧化碳，是全球变暖的根本原因。
Emitting too much greenhouse gases such as carbon dioxide lies at the root of global warming.
在二氧化碳的数量方面，我们现在正在进入一个未知的领域。
We are entering into uncharted territory now, in terms of the amount of carbon dioxide.
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