(Electronics)a range of frequencies within a given band, in particular (电子)(频率)带宽,尤指 ■the range of frequencies used for transmitting a signal (发射信号所用)频带 ■the range of frequencies over which a system or a device can operate effectively (系统或仪器正常运作所需的)频带 ■the transmission capacity of a computer network or other telecommunication system (电脑网络或其他电讯系统的)传输容量