数字-数字数据变换器
digital-to-digital data converter
带正负号数字数字系统
signed digit number system
可记录数字视讯光盘
digital video disc recordable
可再写数字视讯光盘
rewritable digital video disc
数字视讯
digital video
Aerobics integrated teaching
数字视讯广播
digital video broadcasting
数字视讯互动
digital video interactive
数字视讯家用系统
digital video home system
数字视讯效应产生器
digital video effect generator
DVB(数字视频广播)
Agricultural revitalization