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单词 blue process
释义

Definition of blue process in English:

blue process

noun
historical
  • A photographic process which uses ‘blue paper’ or a similarly treated cloth, especially for copying documents.

Origin

Mid 19th century; earliest use found in American Journal Photography.

Definition of blue process in US English:

blue process

noun
historical
  • A photographic process which uses ‘blue paper’ or a similarly treated cloth, especially for copying documents.

Origin

Mid 19th century; earliest use found in American Journal Photography.

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更新时间:2025/1/14 14:07:06