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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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s.t.l.
st.-lambert
st. laurent
st. lawrence
st. lawrence seaway
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st. louis park
st. lucia
st. lucie cherry
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st. malo
st. martin
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st. matthews
st.-mihiel
st. moritz
stmt
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stoa
stoae
stoai
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更新时间:2025/11/14 23:15:39