[电] automatic sensitivity control, automatic sensitiyity control

zì dòng líng mǐn dù kòng zhì ㄗˋ ㄉㄨㄥˋ ㄌㄧㄥˊ ㄇㄧㄣˇ ㄉㄨˋ ㄎㄨㄥˋ ㄓˋ