GDG的相關資料：
臨近單詞
GD
GDOS Graphic Disk Operating System
GD in Translation and Interpreting
GDSS Global Decision Support System
GDOP Geometry Dilution of Precision
GDAS Ground Data Acquisition System
GDOS Generalized Disk Operating System
GDDL Graphical Data Definition Language
GDSS-based global network file system
GDHS Generalized Dynamic Hypermedia System
