State system for ensuring the uniformity of measurements. State special standard and state verification schedule for means measuring electric power and power factor over the frequency range 40-20000 Hz
Noise of machines. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane
Implants for surgery. Wear of total hip-joint prostheses. Part 3. Loading and displacement parameters for orbital bearing type wear testing machines and corresponding environmental conditions for test
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