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| courbe caractéristique (e.g. of an X-ray film) | |||
| courbe de Hurter et Driffield (e.g. of an X-ray film); courbe H et D (e.g. of an X-ray film); courbe H-D (e.g. of an X-ray film) | |||
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| densitogramme m; courbe caracteristique; courbe de gradation; courbe de Hurter et Driffield; courbe de noircissement; courbe sensitometrique | |||
