| 释义 |
Definition of chemical fog in English: chemical fognoun 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 fognoun 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. |