“synchronous digital hierarchy，SDH”的概念、定义、翻译、参考文献-科学参考

单词	synchronous digital hierarchy，SDH
释义	synchronous digital hierarchy，SDH Encyclopedia 工学【复用概念】释 synchronous digital hierarchy，SDH同步数字体系基于同步复用技术的数字复用体系。
随便看	cosmetic safety and risk substance Cosmetics Hygiene Supervision and Regulation cosmetics industry Cosmetic slate Cosmetic Utensil of Han Dynasty cosmic absorption cosmic abundance cosmic abundance, universe abundance cosmic accelerated expansion cosmic acceleration cosmic aerodynamics cosmic age cosmical aerodynamics cosmical electrodynamics cosmicality cosmically cosmical physics cosmic and supernova neutrinos Cosmic Anisotropy Telescope cosmic background Cosmic Background Explorer cosmic background explorer Cosmic Background Explorer satellite Cosmic Background Imager cosmic background radiation

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。