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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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fixer-upper
fixing
fixings
fix-it
fixit
fixity
fixt
fixture
fixtureless
fix up
fix-up
fizeau
fizgig
fizz
fizzer
fizzier
fizziest
fizzle
fizzwater
fizzy
fjeld
fjord
fjordic
fl.
fl
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更新时间:2025/9/21 14:52:03