| 释义 |
differentiator|dɪfəˈrɛnʃɪeɪtə(r)|
[f. differentiate v. + -or.]
One who or that which differentiates; spec. (a) Biol. an organ, part, etc., that stimulates or controls differentiation; (b) a device that produces an output proportional to the rate of change (with respect to time or another variable) of the input.
1889Cent. Dict. s.v., The radicals of written Chinese serve as differentiators of the sense. 1894Times 11 Aug. 11/1 It was..advisable to have a ‘differentiator’..and this was difficult to construct, because any irregularities in a curve were magnified in its differential coefficients. 1924Discovery June 77/1 Some influence..made the tissues of the host build themselves up in the special and orderly way of differentiation. It was a differentiator. 1969P. B. Jordain Condensed Computer Encycl. 156 An ordinary transformer produces an output voltage proportional to the rate of change of the input current, but its use as a differentiator is not common. |