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| передняя пята опорного давления | |||
| передняя пята опорного горного давления; передняя пята (опорного горного давления) | |||
| front abutment: 6 phrases in 4 subjects |
| Mining | 1 |
| Polygraphy | 1 |
| Seismology | 1 |
| Technology | 3 |
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