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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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sphenodon
sphenogram
sphenographer
sphenographist
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sphenoid bone
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spheral
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更新时间:2025/11/24 22:25:19