[电] biased automatic gain control, delayed automatic gain control

yán chí zì dòng zēng yì kòng zhì ㄧㄢˊ ㄔˊ ㄗˋ ㄉㄨㄥˋ ㄗㄥ ㄧˋ ㄎㄨㄥˋ ㄓˋ