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声系统设备 第4部分:传声器测量方法
Sound system equipment-Part 4: Methods of measurement for microphones
Sound system equipment-Part 4: Methods of measurement for microphones
Sound system equipment Part 7:Methods of measurement on headphones and earphones
Sound system equipment-Part 11 :Application of connectors for the interconnection of sound system equipment
Sound system equipment-Part 3 : Methods of measurement on audio amplifiers
Sound system equipment-Part 2 :Explanation of general terms and calculation methods
Sound system equipment-Part 1:General
Marine automatic radar plotting aids(ARPA)-Performance requirements,methods of testing and required test results
Use on public data networks of data terminal equipment (DTE)which is designed for interfacing to asynchronous duplex V-series MODEMS
Use on public data networks of data terminal equipment (DTE)which is designed for interfacing to synchronous V-series MODEMs
Procedure for the exchange of control informationand user data between a packet assembly/disassembly(PAD)facility and a packet mode DTE or another PAD