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United power system and isolated power systems. Relay protection and automatic. Automatic control devices of frequency and active power of hydraulic power units of hydraulic and pumped storage power plants. Norms and requirements
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Environmental management. Guidelines for the assessment and management of greenhouse gas emissions
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Subland twist drills for holes prior to tapping screw threads. Basic dimensions
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Information technology. Radio frequency identification device performance test methods. Part 2. Test methods for interrogator performance
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