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| карандашный камень | |||
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石笔石 : 36 phrases in 8 subjects |
| Automated equipment | 1 |
| Biology | 2 |
| Construction | 1 |
| General | 15 |
| Geology | 2 |
| Ichthyology | 1 |
| Technology | 11 |
| Welding | 3 |
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