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Gas-turbine engines. Determining direction of rotor and shaft rotation
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Heating boilers. Part 2. Heating boilers with forced draught burner. Special requirements for boilers with atomizing oil burners
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Thermal insulation. Physical quantities and definitions
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Geotechnical investigation and testing. Identification and classification of rock. Part 1. Identification and description
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Unidirectional restrictor valves of flying vehicle hydraulic systems. Types and technical requirements
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