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Moulding sands. Methods for determination of medium size of seed and coefficient of homogeneity
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United power system and isolated power systems. Relay protection and automation. Automatic emergency control of electric power systems. Automatic unloading devices in case of power overload. Norms and requirements
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Milk and cream. Method of determination of termostability on alcohol test
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Secondary cells and batteries containing alkaline or other non-acid electrolytes. Safety requirements for secondary lithium cells and batteries for use in electrical energy storage systems
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Rolling bearings. Duplex angular contact ball bearing. General technical requirements
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