符号: character; sign; symbol; mar ...数字: figure; digit; numeral; char ...带符号数字记数制: signed digital number system符号数: sign digit; symbolic number【电脑】符号数位。: sign digit带符号数: signed numbers带符号数制: sign digit number system; signed digit number system符号数据: symbol data符号数据集: symbolic data set符号数学: symbolic mathematics符号数值: sign magnitude无符号数: unsigned number无符号数据: data without sign有符号数: directed number; signed number拨号数字: dialed digit声信号数字: sound signal digital型号数字: mn(model numbers符号数据分析: sda符号数学系统: symbolic math system; symbolic mathematical system符号数争系统: symbolic math system; symbolic names符号数值运算: sign magnitude arithmetic有符号数处理: signed number representations余留无符号数: rest unsigned number拨号数字间隔: interdigit interval具正负号数字: signed number