同步: synchronization; synchronism ...数字: figure; digit; numeral; char ...复用: multiplexing; multiplex数字复用: digital multiplexing数字复用器: interleaver数字复用键盘: numeric keypad overlay数字复用设备: dme digital multiplex equipment数字复用系列: digital multiplex hierarchy同步数字: sdh同步数字网: synchronous digital network二次数字复用器: secondary digital multiplexer数字复用接口模件: digital multiplexed interface module数字复用转接系统: digital multiplex switching system混合多路复用同步数字转换器: hmsdc hybrid multiplexed synchro digital converter同步数字体系信号的基本复用结构: basic multiplexing structure for synchronous digital hierarchy signals半同步数字网: semi synchronous digital network同步数字处理: synchronous digital process同步数字体系: synchronous digital hierarchy; synchronousdigitalhierarchysdh同步数字系列: sdh synchonos digita hieachy; sdh synchronous digital hierarchy; sdhsynchronousdigitalhierarchy; synchronous digital hierarchy sdh同步数字系统: sdh synchronous digital hierarchy; synchronous digital system字复用: word multiplex数字万用表；数字复用表: digital multimeter超准同步数字系列: super plesiochronous digital hierarchy非同步数字输入: asynchronous digital input光纤准同步数字: pdh
