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Low voltage systems. Cable systems. Topology of low voltage cable systems. Basic provisions
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Electromagnetic compatibility. Part 4-21. Testing and measurement techniques. Reverberation chamber test methods
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Printing types. Type family 'Jurnaljnaya' ( for alphabets of Russian and roman graphic bases). Range of application. Design. Base line. Characters per 4 picas
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Vibration and shock. Vibration in buildings with sensitive equipment. Part 1. Measurement and evaluation
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Earth upper atmosphere. Computation methods of density variation characteristics
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