ƼӰչԱӰչ̳̳Ӱչ̳ҵfotoyardӰվ;fotoyard;йӰEnglish Version¼עʹָϵǴͼƼ: [ĵع] byرƼ<>...<϶>guxaӶ...
ǼסÿһƬΣڶ, 18, 2008ʲôFDMA,ʲôƵָ FDMAͨеһּͬûʱ϶ͬƵʲͬŵϡּƵֶ·ϵͳмпƵƵθҪû
й̱棺ԭϳԤѹ϶ˮѹ⣨Ẓ́1990꣩ͭʨɽɽ϶ˮѹ⣻1989꣩ɽ1Ÿӽ⣻1993꣩ԭϳ϶ˮѹѹ⣻1991꣩
ղأΪҳͭCCAͭþϽCCAMҺѹ·ˮʽ֬϶ʽ PYDLWHоϵҺѹװܷƽԭ豸˾1996Ӫɷҵ
PCM豸ϵ PDH˻ϵ·NE-120·NE-240·NE-480·NE-120E·NE-240E·NE-480EЭתϵй MODEM(è)ϵʱ϶ȡ豸ģƵ˻Ƶ˻ӭλҳ NE-120 NE-PCM8
Ϊ˷ߺάվ棬СվڽֹĿ¸ƵͬʱЩӣӭӻԾأ [admin 20071019]Ϊ˷ߺάվ棬СվڽֹĿ¸ƵͬʱЩ
վЩ...СЩ...ٶַ֮ȫй簢ͰйѸй̫ƽ绪ڲЭйݸˮģû˹˹λ
|ྲ|Ф|ɫ|Ӱ||ҳMMŮҲΪЦշྲФɫ
ȨУ麣·Źó˾ ICPţICP07063641ż֧֣麣ϢƼ֧֣Ƽ˾ICP06009014