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emergency broadcasting
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emergency broadcasting
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紧急广播
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emergency broadcasting
紧急广播
通过广播通信系统迅速向公众通告紧急事件的传播手段。
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【广播电视关键技术】
释
emergency broadcasting
应急广播
利用广播电视系统向公众发布突发事件相关信息的技术体系。应急广播体系是国家应急体系和国家公共服务体系的重要组成部分。
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petroleum exploitation microorganism
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petroleum exploration appraisal techniques
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Petroleum Field Size Sequence Method
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petroleum hydrocarbon degrading microorganisms of soil
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