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Progress of Study on the Special toxicology of Quinoxaline 1,4 dioxide type Antibacterial and Growth promoting Agents
喹恶啉-1,4-二氧化物类抗菌促生长剂特殊毒理学研究进展
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Preparation of ternary complexes of rare earth salicylates with 2,2 ' - bipyridine-n , n ' - dioxide
2,2′-联吡啶-N,N′-二氧化物,水杨酸稀土三元配合物的制备
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Reducing levels of carbon dioxide in the atmosphere is of critical importance .
减少大气层中的二氧化碳含量极其重要。
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Humans take in oxygen and breathe out carbon dioxide .
人吸入氧气,呼出二氧化碳。
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A spokesperson commented that levels of carbon dioxide were very high .
发言人称二氧化碳的含量很高。
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Sulphur dioxide is a pollutant and a major contributor to acid rain .
二氧化硫是一种污染物,并且是形成酸雨的主要因素。
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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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Carbon dioxide is a necessary result of the oxidation of carbon compounds .
碳化合物氧化后必然会产生二氧化碳。
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Plants absorb carbon dioxide from the air and moisture from the soil
植物从空气中吸收二氧化碳并从土壤中汲取水分。
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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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Dissolved carbon dioxide makes the water more acidic .
二氧化碳溶解后能使水的酸性增加。
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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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Industrialized countries must reduce carbon dioxide emissions .
工业化国家必须减少二氧化碳的排放。
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This may provide a quick and accurate way of monitoring the amount of carbon dioxide in the air
这也许能提供一个监测空气中二氧化碳含量的既快又准的方法。
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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 amount of carbon dioxide released by human activities such as burning coal and oil is small in comparison
相比之下,人类活动燃烧煤、石油等所释放的二氧化碳要少一些。
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The emission of gases such as carbon dioxide should be stabilised at their present level
二氧化碳等气体的排放应该稳定在当前水平。
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Through this incision , the abdominal cavity is distended with carbon dioxide gas
二氧化碳气体通过这个切口进入,造成腹腔肿胀。
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Mars has an insubstantial atmosphere , consisting almost entirely of carbon dioxide
火星的大气层极其稀薄,几乎全部由二氧化碳构成。
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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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I am all for cutting carbon dioxide emissions , but that would be much more easily achieved by giving subsidies to windpower , than with nuclear power
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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Carbon is an element , while carbon dioxide is a compound .
碳是一种(化学)元素,而二氧化碳则是一种化合物。
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The thermal decomposition of calcium carbonate produces calcium oxide and carbon dioxide .
碳酸钙加热分解,生成氧化钙和二氧化碳。
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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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Plants absorb carbon dioxide .
植物吸收二氧化碳。
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The result would be higher emissions ofcarbon dioxide and other greenhouse gases .
进而导致二氧化碳和其他温室气体的排放量增加。
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Phytoplankton live at the ocean surface , where they pull carbon dioxide into the ocean while giving off oxygen .
浮游植物生活在海洋表面,它们在释放氧气的同时将二氧化碳吸入海洋。
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Without gravity to help circulate air , the carbon dioxide you exhalehas a tendency to form an invisible cloud around you head .
如果没有重力来帮助空气循环,你呼出的二氧化碳会在你的头上形成一团看不见的云。
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Warming changes key characteristics of the ocean and can affect phytoplankton growth , since they need not only sunlight and carbon dioxide to grow , but also nutrients .
全球变暖改变了海洋的主要特征,还会影响浮游生物的生长,因为除了阳光和二氧化碳,它们还需要营养物质才能生长。