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| колокол; лерка; плашка | |||
| образующий конус | |||
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母锥 : 41 phrases in 9 subjects |
| Aerodynamics | 1 |
| Drilling | 3 |
| Gear train | 2 |
| General | 11 |
| Mathematics | 2 |
| Oil / petroleum | 4 |
| Oil processing plants | 3 |
| Technology | 13 |
| Welding | 2 |
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