unburned的意思|unburned的解释-里氏词典

unburned [,ʌn'bә:nd]

a. 未燃的

The agency said routine testing discovered that the cars emit more than the permitted about of carbon monoxide, and the trucks and utility vehicles emit too much carbon monoxide and unburned fuel.
On a hot day, it now appears, the system can be overwhelmed and release five to 25 times more unburned gasoline than is permitted in exhaust.
Cars running on ETBE-blended gasoline emit less carbon monoxide, unburned hydrocarbons and toxics such as benzene, Daschle said.
Current cars must meet strict standards for emission of unburned gasoline vapor out the tailpipe and for evaporation.
For sustained ozone formation, both nitrogen oxides and hydrocarbon vapors like unburned gasoline are necessary.

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