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单词 focal capacity
释义

Definition of focal capacity in English:

focal capacity

noun
Optics Photography
  • The maximum (or minimum) focal distance of a lens or lens system, or of an optical instrument or camera.

Origin

Late 19th century; earliest use found in American Naturalist.

Definition of focal capacity in US English:

focal capacity

noun
Optics Photography
  • The maximum (or minimum) focal distance of a lens or lens system, or of an optical instrument or camera.

Origin

Late 19th century; earliest use found in American Naturalist.

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