Russian standards PDF

Optics and photonics. Lenses for optical electronic systems. Methods for measuring focal length

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Automobile roads of general use. Bridges and culverts. Technical requirements

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Automobile roads of general use. Road bridges and culverts. Methods for determination of geometric and physical parameters

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Means of education and upbringing. Terms and definition

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Automobile roads of general use. Organomineral cold mixes using secondary asphalt concrete. General specifications

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Automobile roads of the general use. Organomineral cold mixes using secondary asphalt concrete. Test methods

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