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pro vyhledávání: '"A. N. Dzutsev"'
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 16:689-694
1. To obtain fine and evenly distributed thoria particles, it is necessary to produce bars from finegrained powders. 2. To obtain the comparatively large grain that facilitates the working of tungsten, it is necessary to weld bars made of a fine-grai