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

单词	Synchronous Digital Hierarchy (SDH)
释义	网络与多媒体词汇手册 Synchronous Digital Hierarchy (SDH) 同步数字体系
随便看	credit loss Credit Lyonnais credit management credit management credit management credit management credit memo credit memo--credit memo（randum） credit memo（randum） credit money credit multiplier credit note credit note credit note credit officers group creditor creditor creditor creditor creditor creditor creditor creditor creditor at large creditor country

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。