bandwidth
/ˈbændwɪdθ/noun
1- Electronics a range of frequencies within a given band, in particular【电子】（频率）带宽, 尤指：
1.1
- the range of frequencies used for transmitting a signal（发射信号所用）频带。
1.2
- 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。
1.3
- 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。