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следы от шариков | |||
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твёрдость вдавливанием шарика | |||
вдавливание шарика |
ball indentations: 16 phrases in 9 subjects |
Cement | 1 |
Makarov | 2 |
Metallurgy | 1 |
Metrology | 1 |
Oil / petroleum | 1 |
Quality control and standards | 4 |
Rail transport | 1 |
Technology | 4 |
Transport | 1 |