Behind this rush of new technology are a number of advances that make it possible to boost the capabilities of existing copper telephone wiring and upgrade cable TV networks for two-way high-speed interactive traffic.
英
美
- 在這場(chǎng)新技術(shù)熱的背后是多種技術(shù)進(jìn)步，能使現有的銅電話(huà)線(xiàn)提高能力和改進(jìn)有線(xiàn)電視網(wǎng)，傳送雙向的高速交互信息流。
