压电直线电机
piezo linear motor
piezoelectric linear motor
北大西洋无线电系统
NARS North Atlantic Radio System
国家无线电系统委员会
NRSC National Radio System Committee
毫米波无线电系统
millimeter-wave radio system
System
millimeter-wave radio
局域无线电系统
LARS Local Area Radio System
军用联合无线电系统
military affiliated radio system
模块化战术无线电系统
Attenuated UV-B radiation
软件无线电系统结构
software radio architecture
输电线系统
transmission line system
high-voltage transmission line system
跳时脉冲无线电系统
time-hopping impulse-radio system
通用封包无线电系统
general packet radio system