Automobiles create it. Any device that burns fuels like coal,gasoline,kerosene, oil or wood will produce carbon monoxide.

VOA: special.2010.02.02

That is metallic sodium that would keep in kerosene so it doesn't react with the oxygen in the air.

金属钠应该保存在没有中,这样它就不会和空气中的氧气反应了。

麻省理工公开课 - 固态化学导论课程节选

And I know that sodium chloride forms because, if I look on the webpage at 3.091, you see this down here, this is sodium in kerosene.

我知道氯化钠形式，因为我看过3。091的网站，看看这个，这是钠在煤油中。

麻省理工公开课 - 固态化学导论课程节选

Kerosene costs less than other forms of lighting, but it is still costly in poor countries.

VOA: special.2009.12.21

So,one year of kerosene would pay for a solid-state lighting system."

VOA: special.2009.12.21

Many families use kerosene oil lamps.

VOA: special.2009.12.21

kerosene is expensive, produce only dim light and generate polluting fumes that cause health and environmental problems.

VOA: standard.2009.12.13

He adds that's about the same as the cost of kerosene for a year.

VOA: standard.2009.12.13

I read under the dim light of a kerosene lamp.

VOA: standard.2010.04.01