中文: abbr. [计算机]分布式文件系统(Distributed File System);免税消费(Duty Free Shopping);[计算机]深度优先搜索(depth first search)
中文: abbr. Dangerous Goods Classification 危险货物分类; digital gain control 数字增益控制; Digital geoballstic Computer 数字地面弹地面道计算机; digital gyrocompass, digital gyroscopic compass 数字陀螺罗盘