音标：[ˌfəʊtəˈgræfɪk ˈdensiti] ；

照相底片密度; 照相密度; 底片黑度; 摄影密度

photographic density的用法和样例：

例句

For areas where the film density through the weld varies by more than from the density through the penetrameter, an additional penetrameter shall be used for those areas.当焊缝区域底片黑度变化超过透度计处黑度时，应在该处另加透度计。

【近义词】

optical density光学深度,吸收度,光密度...
absorbance吸收率
transmission density透射浓度

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