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电子收费 专用短程通信 第5部分:物理层主要参数测试方法
Electronic toll collection--Dedicated short range communication--Part 5:Test methods of the main parameters in physical layer
价格:¥0.00
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信息技术.系统间远程通信和信息交换.DTE/DCE接口处起止式传输的信号质量
Information technology.Telecommunication and information exchange between systems.Start-stop transmission signal quality at DTE/DCE interfaces
价格:¥0.00
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信息技术.系统间远程通信和信息交换.DTE到DTE直接连接
Information technology.Telecommunication and information exchange between systems.DTE to DTE direct connections
价格:¥0.00
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信息技术.系统间远程通信和信息交换使用GB/T 3454的DTE/DCE接口备用控制操作
Information technology.Telecommunication and information exchange between systems.DTE/DCE interface back-up control operation using GB/T 3454 interchange circuits
价格:¥0.00
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信息技术 系统间远程通信和信息交换50插针接口连接器配合性尺寸和接触件编号分配
Information technology-Telecommunications and information exchange between systems-50-pole interface connector mateability dimensions and contact number assignments
价格:¥0.00
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信息技术 系统间远程通信和信息交换26插针接口连接器配合性尺寸和接触件编号分配
Information technology--Telecommunications and information exchange between systems--26-pole interface connector mateability dimensions and contact number assignments
价格:¥0.00
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信息技术 高性能并行接口 第1部分:机械、电气及信号协议规范(HIPPI-PH)
Information technology-High-Performance Parallel Interface-Part 1:Mechanical,electrical and signaling protocol specification (HIPPI-PH)
价格:¥0.00
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数据终端设备和数据电路终接设备用的高速25插针接口暨可替换的26插针连接器
High speed 25-position interface for data terminal equipment and data circuit-terminating equipment, including alternative 26-position connector
价格:¥0.00
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数据通信 DTE提供定时的使用X.24互换电路的DTE到DTE物理连接
价格:¥0.00
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信息技术 系统间远程通信和信息交换在S和T参考点上定位的ISDN基本接入接口用的接口连接器和接触件分配
Information technology--Telecommunications and information exchange between systems--Interface connector and contact assignments for ISDN Basic Access Interface located at reference points S and T
价格:¥0.00
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