谁知道AD,DDD,BC,CAAC,NAB这些英文缩写的意思啊,急!

AD
= Access Device,存取设备
= Address Decoder, 地址译码器
= Alternate Display, 备用显示器
= Analysis/Design, 分析/设计
= Automated Design, 自动设计
= Automatic cash Depositor, 自动存款机
= Automatic Display, 自动显示
AD
abbr. 公元 (Anno Domini)
DDD
= Data Dictionary/Directory,数据字典目录
= Detailed Data Display, 详细数据显示
= Digital Data Distributor, 数字数据分配器
= Digital Display Detection, 数字显示检测
= Digital Display Driver, 数字显示驱动器[程序]
DDD
[ 9di:9di:`di: ]
[计] 数据字典目录
长途直拨(电话)
BC
= Basic Control mode,基本控制方式
= Binary Code, 二进制(代)码
= Binary Counter, 二进制计数器
= Bit Clock (3704), 比特时钟
= Board of Control, 控制板，控制盘
= Branch Concentrator, 【PFA】分行集线器[集中处理 机]
BC
n.公元前
CAAC
=Civil Aviation Administration of China (现译名为:General Administration of Civil Aviation of China) 中国民用航空管理总局，中国民航局
NAB
= network address block,网络地址块
= Network Address Block, 网络地址块

AD