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United power system and isolated power systems. Thermal power plants. Automated process control systems. Conditions for the creation. Norms and requirements

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Electric household appliances for boiling liquids. Methods for measuring performance

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Basic norms of interchangeability. Keyed joints with prismatic high keys. Dimensions of keys and keyways. Tolerances and fits

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Non-destructive testing. Penetrant testing. Part 2. Testing of penetrant materials

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United power system and isolated power systems. Relay protection and automation. Differential protection of power lines 110–220 kV. Testing

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Tea concentrate in liquid form. General specification

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