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Particulate air filters for general ventilation. Determination of the technical characteristics
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State system for ensuring the uniformity of measurements. Thermoelectric transducers. Verification procedure
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Integrated research and development management system. Forecasting and strategic planning of scientific and technological development
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State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring phase shift angle within frequency range from 8,2 to 12 GHz
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