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Telegraph TDM channeling equipment. Methods of measurement of electrical parameters
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Electricity metering equipment (a.c.). Particular requirements. Part 61. Power consumption and voltage requirements
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Information and communication technologies in education. Virtual experiment. General regulations
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Angle modulation radio stations of marine mobile service. Types. Basic parameters. Technical requirements. Methods of measurement
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Information technology. Open systems interconnection. Internal organization of the network layer
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Identification cards. Physical characteristics
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