一般认为，在多种曝光条件下，胶片受压之后的灰雾总是增大的。
Ingeneral, under exposing conditions, the fog of the film pressed is always increased.
显影后的胶片在速度、灰雾、反差和D最大方面基本表现出相同的照像性能和物理性能。
The developed strips exhibit substantially identical photographic and physical properties with respect to speed, fog, contract and Dmax.
结果表明，该化合物对抑制胶片贮存中灰雾增长和感光度的变化有明显作用。
It showed evident effects of reducing fog growth and speed change on storage of the photographic material.
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