Low-voltage switchgear and controlgear enclosed equipment. Part 1. Enclosed switch-disconnectors outside the scope of IEC 60947-3 to provide isolation during repair and maintenance work
State system for ensuring the uniformity of measurements. Standard reference data. Silicide of vanadium. The lattice parameters in the concentration range from 20 at.% to 25 at.% of silicon. Coefficient of linear thermal expansion in the range from 20 K up to 300 K
Informational ensuring of equipment and operational activity. System «man–information». The process of information-exchange when carrying out human-information interactions activities
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