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单词 chemical fog
释义

Definition of chemical fog in English:

chemical fog

noun
  • 1Photography a diffuse background darkening in a photographic film or paper caused by a chemical reaction with substances in the developing solution, the atmosphere, etc.

  • 2A cloud of suspended particles or droplets in the air resembling fog or smoke and produced by the release of chemicals.

Origin

Mid 19th century; earliest use found in Charles Smyth (1819–1900), astronomer.

Definition of chemical fog in US English:

chemical fog

noun
  • 1Photography a diffuse background darkening in a photographic film or paper caused by a chemical reaction with substances in the developing solution, the atmosphere, etc.

  • 2A cloud of suspended particles or droplets in the air resembling fog or smoke and produced by the release of chemicals.

Origin

Mid 19th century; earliest use found in Charles Smyth (1819–1900), astronomer.

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更新时间:2024/11/11 10:50:05