Design Business Collaboration Scheme设计的商业合作计划 Double-Byte Character Set双字节字符集 Diffusion-Based Clock SynchronizationDiffusion-Based时钟同步 Dockside Beacon Calibration System码头灯塔标定系统 Denbigh Baptist Christian SchoolDenbigh浸信基督教学校 Delivery Bar-Code Sorter交货条码箱 Database Backed Community System数据库支持社区体系 Dismounted Battle Command System步行作战指挥系统 Double Byte Character Set双字节字符 Digital Battle Command System数字化作战指挥系统 Double-Byte Character Specification双字节的规格