英语词汇optical transport hierarchy怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	optical transport hierarchy
释义	optical transport hierarchy 翻译光传输层次以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译网络释义短语 1 Optical Transport Digital Hierarchy 光传送体系双语例句 1 Generic framing procedure(GFP) is a new brand of data-packet transmitting protocol on synchronous digital hierarchy(SDH), as well as on optical transport network(OTN). 通用成帧协议（GFP）不仅是光同步数字传输网上的传输协议，而且是光传输网上的新型数据包传输协议，它具有简单、多协议适配等优点。
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