释义 |
characteristic curve noun : the graphic curve or the graph picturing it that shows the relation between two variables < a characteristic curve plotting the variations of grid potential and plate current in the normal operation of a vacuum tube > < the patient's fever chart showed the characteristic curve for the disease > a. : the curve indicating the variation of density in a developed photographic image that results from the increase of exposure expressed logarithmically — called also H and D curve, sensitometric curve b. : a curve showing the relationship between frequency and recording intensity or frequency and reproducing intensity in sound recording |