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перлит : 69 phrases in 17 subjects |
| Construction | 4 |
| Electronics | 3 |
| Foundry | 1 |
| General | 1 |
| Geology | 1 |
| Makarov | 3 |
| Materials science | 1 |
| Mechanic engineering | 3 |
| Metallurgy | 10 |
| Oil / petroleum | 6 |
| Oil and gas | 4 |
| Physics | 5 |
| Refrigeration | 5 |
| Sakhalin | 1 |
| Silicate industry | 5 |
| Technology | 13 |
| Trademark | 3 |