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
非法字符
improper command
improper character
unallowable instruction digit
illegal command
illegal character
illegal
character, illegal
IIF
ILEC
Character
脉冲拨号拨出非法字符
Invalid Character Dialed with Pulse Dialing
数字非线性编辑器
digital non-linear editor
直接数字法
direct digital design method
Sony数字数据接口
Sony digital data interface