Russian standards PDF
Soils. Chemical analysis of hydrochloric acid and alkaline extracts from soils
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Soils. Determination of strength characteristics by simple shear method
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Soils. Method for determination of ground freezing point and thawing point
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Soils. Methods for determining the solubility of soils in water
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Electronic beam memory tubes without visible image. Parameters system
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Integrated circuits. Shapers and generators of rectangular voltage pulses. Parameters system
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