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单词
photochemical smog
释义
WordReference Random House Unabridged Dictionary of American English © 2024
pho
′
tochem
′
ical smog
′
,
[
Meteorol.
]
Meteorology
air pollution containing ozone and other reactive chemical compounds formed by the action of sunlight on nitrogen oxides and hydrocarbons, esp. those in automobile exhaust. Also called
oxidant smog, smog.
photo
- +
chemical
1957
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half-century
half cock
half-cock
half-cocked
half crown
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half-cup
half-cut
half deck
half-decker
half dime
half dollar
half-dozen
half-duplex
half eagle
half gainer
half-gallon
half-glasses
half-hardy
half-hearted
halfhearted
halfheartedly
halfheartedness
half hitch
half-hitch
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更新时间:2026/8/16 22:37:18