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| acier hexagonal; fer hexagonal | |||
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hexagonal : 51 phrases in 11 subjects |
| Agriculture | 1 |
| Cables and cable production | 1 |
| Chemistry | 5 |
| Electronics | 1 |
| General | 4 |
| Industry | 10 |
| Materials science | 2 |
| Mechanic engineering | 18 |
| Metallurgy | 6 |
| Mineralogy | 1 |
| Transport | 2 |