二氧化碳

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。

Humans take in oxygen and breathe out 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 .

火星的大气层极其稀薄，几乎全部由二氧化碳构成。

Mars has an insubstantial atmosphere , consisting almost entirely of carbon dioxide

两种主要的燃烧产物是水蒸气和二氧化碳。

The two principal combustion products are water vapor and carbon dioxide .

植物从空气中吸收二氧化碳并从土壤中汲取水分。

Plants absorb carbon dioxide from the air and moisture from the soil

二氧化碳溶解后能使水的酸性增加。

Dissolved carbon dioxide makes the water more acidic .

倡议将强制规定把二氧化碳排放量降低40%。

The proposed initiative would mandate a reduction of carbon dioxide of 40 %

碳化合物氧化后必然会产生二氧化碳。

Carbon dioxide is a necessary result of the oxidation of carbon compounds .

二氧化碳气体通过这个切口进入，造成腹腔肿胀。

Through this incision , the abdominal cavity is distended with carbon dioxide gas

工业化国家必须减少二氧化碳的排放。

Industrialized countries must reduce carbon dioxide emissions .

可以将二氧化碳液化，以便和其他成分分开。

You can liquefy the carbon dioxide to separate it from the other constituents .

花草树木会过滤掉空气中的二氧化碳并制造氧气。

Plants and trees filter carbon dioxide out of the air and produce oxygen .

二氧化碳等气体的排放应该稳定在当前水平。

The emission of gases such as carbon dioxide should be stabilised at their present level

甲烷常被认为是仅次于二氧化碳的重要温室气体。

Methane is often regarded as the second most important greenhouse gas after carbon dioxide .

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。

Under normal circumstances , these two gases react readily to produce carbon dioxide and water .

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。

This may provide a quick and accurate way of monitoring the amount of carbon dioxide in the air

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。

The amount of carbon dioxide released by human activities such as burning coal and oil is small in comparison

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。

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

完全干燥玻璃粉吸附大量的二氧化碳。

Considerable quantities of CO ₂ are adsorbed even by perfectly dry glass powder .

碳是一种（化学）元素，而二氧化碳则是一种化合物。

Carbon is an element , while carbon dioxide is a compound .

碳酸钙加热分解，生成氧化钙和二氧化碳。

The thermal decomposition of calcium carbonate produces calcium oxide and carbon dioxide .

植物吸收二氧化碳。

Plants absorb carbon dioxide .

石灰水变得混浊了，可见在实验中有二氧化碳生成了。

The lime water has turned cloudy , therefore carbon dioxide has been produced during the experiment .

支持铁物质增殖作用理论的人认为这些尘埃促成了海洋藻类的茂密生长，后来这些藻类沉入海床，带走了大量的二氧化碳，这进一步降低了地球温度。

Supporters of the iron-fertilization theory believe this dust produced blooms of oceanic algae that then sank to the seabed , taking large amounts of carbon with them , which helped to reduce temperatures still further .

进而导致二氧化碳和其他温室气体的排放量增加。

The   result   would   be   higher   emissions   ofcarbon   dioxide   and   other   greenhouse   gases .

到2020年之前，我们必须将二氧化碳的排放量从2006的水平上减少80%，到2040年之前，将全球人口控制在80亿以内，彻底消除贫因，并恢复森林和土壤。

We must cut carbon emissions by 80 % from their 2006 levels by 2020 , stabilize the world 's population at eight billion by 2040 , completely remove poverty , and restore forests and soils .

你最终可能会患上宇航员所说的二氧化碳头痛症。

You can end up with what astronauts call a carbon-dioxide headache .

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。

Phytoplankton live at the ocean surface , where they pull carbon dioxide into the ocean while giving off oxygen ．

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。

Without gravity to help circulate air , the carbon dioxide you exhalehas a tendency to form an invisible cloud around you head .