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| рама-шаблон (при проходке ствола шахты) | |||
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collar set : 10 phrases in 7 subjects |
| Electronics | 1 |
| Geology | 1 |
| Mechanic engineering | 1 |
| Medical | 1 |
| Mining | 3 |
| Oil / petroleum | 2 |
| Transport | 1 |
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