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单词 photochemical smog
释义

WordReference Random House Unabridged Dictionary of American English © 2024
photochemical smog, [Meteorol.]
  1. Meteorologyair 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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