Lanthanum, cerium, ytterbium, lutecium, yttrium and their oxides. Chemical-spectral method of determination of impurities in oxides of rare earth elements
The state system of ensuring the uniformity of measurements. Variable pressure drop technique. Special orifices. Part 1. Principle of measurement technique and general requirements
Rotating electrical machines. Part 14. Mechanical vibration of certain machines with shaft heights 56 mm and higher. Measurement, evaluation and limits of vibration
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