脉冲带

blues band───[地质]蓝带

pass band───通频带

blues bands───[地质]蓝带

file band───文件带区

pass bands───通频带

passband───n.通频带，滤波通带

pulled back───拉回；撤回；拉为平手；反悔

pulls back───拉回；撤回；拉为平手；反悔

The system uses a powerful transmitting circuit that transmits width-variable pulses, and a sensitive receiving circuit that offers quite wide frequency band.───该系统采用大功率、可变发射脉宽的发送电路，高灵敏度、宽带的接收电路，能实现快速、动态、高分辨率的采集和成像。

effect of dispersion of broad band electromagnetic pulses is discussed.───讨论了色散在宽频带脉冲对人体作用中的影响。

Ultra Wideband (UWB) system is an attractive high speed wireless communication scheme for short range communication. It transmits extremely short pulses, which occupy ultra wide band.───超宽带(uwb)通信通过传输能量极低的极短脉冲和占用超大带宽来完成短距离的高速通信。