It applies a negative bias to the summing junction of voltage regulator Op Amp Z1 to cutback the generator voltage when frequency drops below 50 Hz.是什么意思_It applies a negative bias to the summing junction of voltage regulator Op Amp Z1 to cutback the generator voltage when frequency drops below 50 Hz.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句