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natural materials | |||
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natural ground | |||
natural material |
естественные материалы : 20 phrases in 12 subjects |
Cement | 3 |
Construction | 2 |
Electronics | 2 |
Forestry | 1 |
General | 2 |
Geology | 1 |
Makarov | 1 |
Mining | 1 |
Nanotechnology | 1 |
Nuclear chemistry | 3 |
Oil / petroleum | 1 |
Technology | 2 |