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通信局(站)在用防雷系统的技术要求和检测方法
Performance requirements and Testing Methods for Lightning Protection system of Running Telecommunication Stations/Sites
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石油化工企业电信设计规范
Specification for design of telecommunication for petrochemical factory
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石油化工装置电信设计规范(附条文说明)
Specification for design of telecommunication for unit in petrochemical industry
价格：￥0.00
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基于公用电信网的宽带客户网络的业务应用场景
价格：￥0.00
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电信中心机房设备的火焰传播危险技术要求及试验方法
价格：￥0.00
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水文监测数据通信规约
Transmission protocols for hydrologic monitoring data
价格：￥0.00
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