sdh meaning in English
SDH ＝synchronous digital hierarchy 【电信】同步数字式程序。
Examples
- Optical digital loop carrier equipment sdh - base
同步数位阶层光数位回路载波机设备 - Digital cross connect system equipment sdh - base
同步数位阶层数位交换连接系统设备 - Management and maintenance of sdh transmission equipment
传输设备的管理及维护 - Digital cross connect system equipment sdh - based
同步数位阶层数位交换连接系统设备 - Optical digital loop carrier equipment sdh - based
同步数位阶层光数位回路载波机设备