digital ccd数字电荷耦合掐digitaladj.数字的；数码的；手指的；计数的digital block Schmidt trigger数字阻塞施密特触发器digital surveying and mapping数字测绘digitalization of information信息数字化digital pseudo noise sequence数字伪噪声序列digital electronic controller数字式电子调节器Digital Across Connect System数字交叉连接系统digital radio multiple access一点多址系统Digital Communications System数字通信系统digital communication systems数字通信系统digital communication signals数字通信信号