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单词
positive crankcase ventilation
释义
WordReference Random House Unabridged Dictionary of American English © 2024
pos
′
itive crank
′
case ventila′tion,
[
Auto.
]
Automotive
a means of reducing air pollution by directing the fumes from the crankcase of an engine into the intake manifold, so that they will be channeled into the cylinders and burned.
Abbr.:
PCV
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steyr
st. francis
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st. gallen
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stge
st. george
st. george's
st. george's channel
st.-germain
st.-germain-des-prés
st.-germain-en-laye
st. gotthard
st. helena
st. helens
st. helier
sthenia
sthenic
stheno
stibial
stibine
stibium
stibnite
stich
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更新时间:2025/11/13 1:45:31