短語詞組短語audible warning signal 聲響警告信號audible e signal 可聽訊號audible busy signal 音響佔(zhàn)線信號;可聞忙音訊號;忙音信號audible ringing signal 可聞?wù)疋徲嵦?音響振鈴信號audible alarm signal 聲響火警信號;音響警報(bào)信號audible traffic signal 響號交通燈Audible pedestrian signal 盲人音響號志Tripping audible signal 掉牐音響信號audible signal device 音響信號裝置 返回 audible signal