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| base metals | |||
| common metals | |||
| imperfect metals | |||
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| basic metal | |||
| base metal | |||
| base metal (все металлы, кроме золота, серебра и платины); nonprecious metal (MichaelBurov); non-precious metal (MichaelBurov) | |||
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неблагородные металлы : 14 phrases in 8 subjects |
| Automated equipment | 2 |
| Electronics | 2 |
| Geology | 2 |
| Makarov | 2 |
| Microelectronics | 2 |
| Mining | 1 |
| Oil processing plants | 1 |
| Technology | 2 |