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Physical optics. Terms, letter symbols and definitions of basic quantities
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Low-voltage switchgear and controlgear. Part 2. Circuit-breakers
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Guide dogs for the blind people. Basic requirements for conditions of detention and medical examination
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Non-woolen sheets and piece-goods textile. Acceptance rules and sampling-method
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Seeds of minor fodder crops. Sowing characteristics. Specifications
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High purity substances. Method for concentration of microimpurities by ion exchange
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