Russian standards PDF
Kaplan. Francis axial flow vertical shaft hydraulic turbines. Basic parameters
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Railway rolling stock. Acoustic signaling devices. General specifications
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Short-circuits in electrical installations. Calculation methods of electrodynamics and thermal effects of short-circuit current
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Crushed stone of rocks for railway ballast. Specifications
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Microbiology of food and animal feeding stuffs. Methods for the detection and colony count of yeasts and moulds
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