An op amp combines with strategically placed zener diodes to yield a process-control circuit that has positive- and negative-going hysteresis bands.是什么意思_An op amp combines with strategically placed zener diodes to yield a process-control circuit that has positive- and negative-going hysteresis bands.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句