dioxide

It's the carbon dioxide we breathe out.

问题是我们呼出的二氧化碳

But they could be under threat from all that extra carbon dioxide.

但受过量二氧化碳的影响 它们的生存受到了威胁

And then, when there's no more carbon dioxide ice, it disappears.

随着干冰消失 这景象也消失了

That would react with the carbon dioxide and turn it into oxygen.

镁会和二氧化碳反应生成氧气

The van's engine would choke on the carbon dioxide.

货车的引擎会被二氧化碳阻塞

Much more powerful than carbon dioxide, for example.

比如说 它比二氧化碳还强

It looks like the formula for sulfur dioxide.

看起来像二氧化硫[SO2]化学式

But they do the same thing they let the oxygen in, and the carbon dioxide out.

但它们的功能相同 让氧气进入 让二氧化碳排出

We need oxygen to make carbon dioxide.

我们则需要将氧气转化成二氧化碳

It's a silicon dioxide crystal, otherwise known as quartz.

这是二氧化硅晶体 也就是石英