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美国《TelevisionBroadcast》杂志最近发表了其1997年对广播机构设备购买情况的调查结果。此次调查共随机发出问卷1000份,返回231份,返回率23%。调查对象为广播部门、网络广播部门、有线电视网、有线电视前端、电视产品商、政府和教育广播经营者。调查结果显示,被调查的机
TelevisionBroadcast magazine recently published a survey of its purchases of broadcaster equipment in 1997. The survey sent a total of 1000 random questionnaires, 231 returned, the return rate of 23%. The respondents were broadcasters, broadcasters, cable networks, cable television front-end, television product providers, government and educational broadcasting operators. The survey showed that the machine under investigation