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feedback 音标拼音: [f'idb,æk] n. 反馈,回授;回复,反应 反馈,回授;回复,反应 feedback 回馈; 回授 FDBK feedback 回馈 feedback n 1: the process in which part of the output of a system is returned to its input in order to regulate its further output 2: response to an inquiry or experiment feedback \feedback\ n. 1. the process in which part of the output of a system is returned to its input. [WordNet 1.5] 2. response to an inquiry or experiment. [WordNet 1.5] feedbag 28 Moby Thesaurus words for "feedback": birdies, blooping, blurping, closed loop, closed sequence, current-control circuit, degeneration, distortion, flip-flop circuit, flutter, fluttering, hissing, howling, hum, motorboating, positive feedback, process loop, quality loop, reversed feedback, rumble, scratching, shredding, squeals, static, whistles, woomping, wow, wowwows Feedback may be unintended. When used as a design feature, the output is usually transformed by passive components which attenuate it in some manner; the result is then presented at the system input. Feedback is positive or negative, depending on the sign with which a positive change in the original input reappears after transformation. Negative feedback was invented by Black to stabilise {vacuum tube} amplifiers. The behaviour becomes largely a function of the feedback transformation and only minimally a function of factors such as transistor gain which are imperfectly known. Positive feedback can lead to instability; it finds wide application in the construction of oscillators. Feedback can be used to control a system, as in {feedback control}. (1996-01-02)
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