State system for ensuring the uniformity of measurements. State primary standard and all-union verification schedule for means of measurements of constant linear acceleration of a solid body in the range from 10in minus 3 degree up to 2x10 in 2 degree m/s'2
Electric cables. Calculation of the current rating. Part 2-2. Thermal resistance. A method for calculating reduction factors for groups of cables in free air, protected from solar radiation
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