短語(yǔ)詞組短語(yǔ)fast broadband net 高速寬帶網(wǎng)絡(luò)HFC broadband integrated information net HFC 寬帶綜合信息網(wǎng)broadcast and television broadband net 廣電城域?qū)拵ЬW(wǎng) 返回 broadband net