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Reagents. Flame-photometric method for determination of impurities sodium, potassium, calcium and strontium
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Low voltage systems. Cable systems. Telecommunication spaces and premises. Work area
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Fur skins and packer pelts dressing and coloured. Determination of colour resistance to friction
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United power system an disolated power systems. Relay protection and automation. Automatic voltage regulators of strong action of synchronous generators. Testing and checking the settings
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Pulps. Methods for preparing laboratory sheet castings for measuring optical properties
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