“同步数字体系”概念、定义、翻译-科学时代

单词	同步数字体系
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	delivery box delivery by instalments delivery channel delivery charge delivery charge delivery clause delivery conduit delivery conduit delivery confirmation delivery confirmation service delivery curve delivery cycle delivery date delivery date delivery date delivery date delivery delay delivery--delivery (Dely.) delivery (Dely.) delivery dependability delivery distance delivery end frame box delivery equipment delivery expense delivery expense

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)