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| D-log E curve (obtained by plotting density against log exposure); optical density curve; sensitometric characteristic (curve) | |||
| emulsion characteristic curve; Hurter and Driffield curve; H and D-curve | |||
| density curve (of a radiographic film); characteristic curve (of a radiographic film) | |||
| characteristic curve | |||
| Hurter-Driffield curve; H-D curve; H. and D. curve; D log E curve (e.g. of an X-ray film) | |||
| density curve | |||
| exposure-density relationship (of the film) | |||
| Schwarzungskurve: 16 短语, 2 学科 |
| 光学（物理学分支） | 15 |
| 物理 | 1 |