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| зияющая пустота; отверстие (напр. грота); проём | |||
| люковое отверстие | |||
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洞孔 : 58 phrases in 13 subjects |
| Construction | 2 |
| Dialectal | 1 |
| Electronics | 1 |
| Figure of speech | 3 |
| General | 17 |
| Geology | 6 |
| Hydrography | 1 |
| Hydrology | 1 |
| Medical | 2 |
| Nuclear and fusion power | 1 |
| Oil and gas | 3 |
| Oil processing plants | 3 |
| Technology | 17 |
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