AIRB abbr. Alabama Inspection and Rating Bureau 阿尔巴马州审查和申诉局; Arkansas Inspection and Rating Bureau 阿肯色州审查和申诉局; Australian Industrial Relations Bureau 澳大利亚工业关系局
DGC 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