无线/数字/监控/设备

?ò??1??T??/êy×?/?à??/éè±? é??úêDèùí¨′?????óD?T1????D?￠éú2ú:COFDM?T??êy×?í???ò??ˉ′?ê?éè±?,￡¨μ￥±??T??×÷???μí3?￠D???ò??ˉ2é???±2￥3μμè￡?3G/evdo/td-scdma/wcdma/edge/cdma?T??í???ò??ˉ′?ê?éè±??￠?T??êy×??￠2¨,í???,3G?T??í???êó?μ?t???÷,??1a?￥21?￠μ??μí3,μèéè±?,?ò???éò??ù?Y?í?§ìá3?òa?óà′?ù?ó1¤??×?￡?2ú???÷òaó??ú￡??üê??Y?°?￠óíì??à???￠ìú???????￠?1???è???￠é-á??à?e?à???￠רòμμ?éú2úéè±?oí?ì2aμèáìóò