CO is the formula for carbon monoxide.

CO是一氧化碳的分子式。

《牛津词典》

When you smoke, the burning of the cigarette creates something called carbon monoxide (CO) -- the same stuff that's created when your car burns gasoline.

当你吸烟，烟草燃烧产生CO——和你的汽车燃烧汽油产生的物质是同样的。

youdao

This paper develops an accelerated life testing method for gas sensor taking CO(carbon monoxide) sensor as an example.

本文以CO传感器为例，提供了一种气体传感器加速寿命试验方法。

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Carbon monoxide (CO) is difficult to detect because it is colourless and has no taste or smell.

BBC: Husband welcomes carbon monoxide decision

These include the exhaust gases such as nitrogen oxides (NOx), non-methane volatile organic compounds (NMVOCs), and carbon monoxide (CO).

BBC: London's clue to stubborn ozone levels

Cornwall Fire and Rescue Service has seen more than a five-fold increase in carbon monoxide (CO) poisoning cases over the last 12 months, it said.

BBC: Fire service sees rise in carbon monoxide poisoning cases