Ultra wideband, a radio communications technology for the transmission of signals over a very broad range of frequencies, typically using very low-energy pulses with a duration of a nanosecond or less.
Ultra wideband.
英语词典包含464360条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。