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DDAB数字音频广播DAC 数模转换器DAMA 按需多址访问D- AMPS 数字先进移动电话业务DAQ 数据获取DAWS数字先进无线业务DBF数字波束形成DBS直接广播业务DBS 直接广播卫星DCFL 直接耦合场效应晶体管逻辑DCOM 分布式组件对象模型DCR 下变频接收机DCS1 80 0 1 80 0 MHz数字通信系统DC
DDAB Digital Audio Broadcast DAC Digital to Analog Converter DAMA On-Demand Multiple Access D-AMPS Digital Advanced Mobile Phone Business DAQ Data Acquisition DAWS Digital Advanced Wireless Services DBF Digital Beamforming DBS Direct Broadcast Services DBS Direct Broadcast Satellite DCFL Direct Coupled Field Effect Transistor Logic DCOM Distributed Component Object Model DCR Downconverting Receiver DCS1 80 0 1 80 0 MHz Digital Communication System DC