“Synchronous Digital Hierarchy--Synchronous Digital Hierarchy (SDH)”概念、定义、翻译-科学时代

单词	Synchronous Digital Hierarchy--Synchronous Digital Hierarchy (SDH)
释义	电子通信与自动控制技术词汇手册 Synchronous Digital Hierarchy (SDH) 同步数字体系
随便看	cascade unit cascade welding cascade wind tunnel Cascadia Cascadian revolution cascading cascading cascading menu Cascading Style Sheet cascading style sheet Cascading Style Sheet--Cascading Style Sheet (CSS) cascading style sheet--cascading style sheet (CSS) cascading style sheet (CSS) Cascading Style Sheet (CSS) cascading style sheet (CSS) cascading style sheet mechanism cascading windows cascajo cascami cascara CAS (career average salary) cascarilla cascarilla cascarilla oil CAS--CAS (career average salary)

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

Synchronous Digital Hierarchy (SDH)