Heating this chemical compound drives off carbon dioxide gas, leaving calcium oxide.

这种化合物加热后会排出二氧化碳，产生氧化钙。

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Some scientists believe that plants inhale oxygen at night and give off carbon dioxide.

一些科学家认为植物夜间吸入氧气而释放二氧化碳。

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When heated, baking soda undergoes a chemical reaction that gives off carbon dioxide, which makes it useful in extinguishing small grease or electrical fires.

当在高温下，苏打的化学反应产生的二氧化碳气泡会消灭少量的油脂和电火苗。

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"When the gas comes off the digester, it has not only methane in it it also has carbon dioxide And it has a trace of hydrogen sulfide."

VOA: standard.2010.02.23

It's phosphate, carbon, carbon, carbon, phosphate, carbon, carbon, carbon, phosphate and it has this structure hanging off the side.

就是磷酸基与戊糖的碳反复连接,如此循环往复,这种结构构成了主链的一边

耶鲁公开课 - 生物医学工程探索课程节选

We have carbon 12. I will even leave off the 6 because we already know it is carbon.

我们有碳12，我们将6省去6,因为我们已经知道它是碳了。

麻省理工公开课 - 固态化学导论课程节选

Pylons are a necessary evil if we are to wean ourselves off carbon-based energy.

BBC: Landscape impact of electric pylon softened by design?

Dropping it to 16C - the lowest setting in this virtual world - only shaves 7% off carbon emissions.

BBC: How warm is your home?

What make algae particularly useful as a feedstock is that they thrive off carbon dioxide (C02), which makes them great carbon sequesters.

CNN: All about algae: Can pond scum power our future?