| 词条 |
the synchronous optical network (SONET) Standardized digital transmission rates for the synchronous digital hierarchy (SDH), and the optical carrier (OC) hierarchy |
| 释义 |
SeeStandardized digital transmission rates for the synchronous digital hierarchy (SDH), the synchronous optical network (SONET), and the optical carrier (OC) hierarchy |
| 随便看 |
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