“optical transmission hierarchy，OTH”的概念、定义、翻译、参考文献-科学参考

单词	optical transmission hierarchy，OTH
释义	optical transmission hierarchy，OTH Encyclopedia 工学【复用概念】释 optical transmission hierarchy，OTH光传送体系将光作为载体传送信息的标准规范。
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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。