数字电视标准 Digital Television Standard ; DVB Digital Television Standard ; DTMB ; SDTV
电视标准 [电视] television standard ; TV standard ; DTMB ; UHDTV
国家电视标准委员会 NTSCNational Television Standard Committee ; National Television System Committee ; national television standard committee
电视标准信号 television standard signal ; television standard signal,television standard signal
中国地面数字电视标准 DTMB
美国数字电视标准 advancde television systems committee
手机电视标准 CDMB ; TMMB
兰道环视标 Landolt ; ELandolt ring
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