negative feed back的用法和樣例：
例句
- While working on a means of reducing amplifier distortion, he devised the negative feedback amplifier.
在研究減少放大器失真方法時他發明了負反饋放大器。 - In this aticle,we discuss two criterias judging the steadiness of the negative feedback system and range wielding them.
本文討論了判定負反饋系統穩定性的兩個準則及它們的使用範圍。
