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broadcasting and television network
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broadcasting and television network
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broadcasting and television network
广播电视网
由许多广播电台、电视台通过联合播出节目而形成的广播电视网络。一般由多层次的广播电视机构组成,是通过一定的手段将广播电视节目信号进行长距离传输后发送到接受地区的现代化信息传播系统。
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environmental health standard
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environmental heterogeneity in the invaded range
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environmental image
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Environmental Impact Assessment Law
environmental impact assessment of construction projects
environmental impact assessment of hydropower development
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environmental impact assessment of museum
environmental impact assessment of planning
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