Codes for exchanging and processing the information for the eight-point representation of Braille characters in the Unicode encoding of alphabets of languages of the peoples of the Russian Federation
Optics and photonics. Peripheral devices and laser equipment systems for realization of technological processes of surface heat treatment, cladding and alloying. Classification and main technical characteristics
Occupational safely standards system. Respiratory protective devices. Gas filters and combined filters. General technical requirements. Test methods. Marking
