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определение твёрдости вдавливанием шарика (по Бринеллю) |
ball hardness testing: 12 phrases in 9 subjects |
Automated equipment | 1 |
Automobiles | 2 |
Makarov | 1 |
Mechanic engineering | 2 |
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Quality control and standards | 2 |
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Transport | 1 |