In order for cable operators to deploy two-way data services, they must first upgrade their wiring infrastructure from one-way to two-way.

 
  • 為了使有線(xiàn)電視運營(yíng)商開(kāi)展雙向的數據服務(wù),他們首先必須把單向的有線(xiàn)基礎設施升級到雙向。
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