原来白色的铅颜料已经氧化发黑了。
The original white lead pigments have oxidized and turned black.
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.
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.
如果有机物腐烂或氧化，它不会形成石油。
If the organic material decays or is oxidized, it will not form petroleum.
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.
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.
二氧化硫是一种污染物，并且是形成酸雨的主要因素。
Sulphur dioxide is a pollutant and a major contributor to acid rain.
他发明了一种制造程序，使金线既不会腐蚀也不会氧化。
He has devised a process for making gold wires which neither corrode nor oxidize.
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.
烟雾中的二氧化氮诱导种子发芽。
Nitrogen dioxide in the smoke induces the seeds to germinate.
二氧化氮是汽车排放的一种污染物。
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.
应特别密切注意氮和二氧化硫的化合物。
Compounds of nitrogen and sulphur dioxide should be particularly closely watched.
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.
我想是二氧化碳吧。
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.
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.
科学分析表明，这些颜色是源自赭石和其他铁氧化物磨成的细粉。
Scientific analysis reveals that the colors were derived from ocher and other iron oxides ground into a fine powder.
许多环境专家现在认为，甲烷比二氧化碳对全球变暖负有更大的责任。
Many environmental experts now believe that methane is more responsible for global warming than carbon dioxide.
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