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din system
释义
DIN system
DIN system
[
′din
or
‚dē‚ī′en ‚sis·təm
]
(graphic arts)
A system in photography used to find the speed of photographic emulsions; it is stated in terms of the logarithm of the reciprocal of the exposure needed to obtain a density of 0.1 above fog density.
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更新时间:2026/9/2 14:56:22