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| коробчатое кольцо (soldumb) | |||
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box seal : 22 phrases in 11 subjects |
| Economics | 1 |
| Elections | 2 |
| Electronics | 1 |
| Mechanic engineering | 5 |
| Oil and gas | 4 |
| Oil and gas technology | 1 |
| Politics | 1 |
| Pulp and paper industry | 1 |
| Technology | 2 |
| Thermal engineering | 3 |
| Transport | 1 |