The result is that unburned gasoline or carbon monoxide come out the tail pipe.

结果，排气尾管即排出了尚未燃烧的汽油及一氧化碳。

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They are picking over the cinders in the rubbish heap for unburned pieces of coal.

他们正在检查垃圾堆中的煤渣，拣出未烧掉的煤块。

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These filters reduce air pollution by minimizing the discharge of unburned carbon monoxide.

这些过滤装置将未燃烧的一氧化碳含量降至最低，降低空气污染。

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An automobile has a system for releasing unburned gasoline under and behind the vehicle.

VOA: special.2010.02.02

There may also be substances such as unburned jet fuel that may have come from the two hijacked jetliners terrorists piloted into the buildings.

CNN: CDC, EPA: Little risk to public from sites

My coffee is hot and yet my hands are unburned.

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Because hydrogen can clean the exhaust right from a cold engine start, the plasma reformer method is 20% to 50% more efficient at reducing NOx than other clean-diesel technologies, allowing less unburned fuel to pass through in the process.

FORBES: Clearing the Air