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United power system and isolated power systems. Relay protection and automation. Differential protection of power lines 110-220 kV. Functional requirements
Document status: Active
Spherical radial double row roller bearings. Types and boundary dimensions
Document status: Replaced by GOST 5721-2022
Steels alloyed and highalloyed. Methods for the determination of boron
Document status: Active
State system of ensuring the unity of measurements. Measurement techniques of index of refraction distribution in transparent phase objects
Document status: Active
Anesthetic and respiratory equipment. Terms and definitions
Document status: Active