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

单词	Synchronous Digital Hierarchy (SDH)
释义	请查阅Synchronous Digital Hierarchy--Synchronous Digital Hierarchy (SDH)
随便看	grind grind grind grind grind grindability Grindal，Edmund Grindelia grinder grinder grinder grinder grinder grinding grinding grinding grinding grinding aid grinding flowsheet grinding machine grinding machine grinding material grinding mill grinding stone grinding the ink

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。