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| преломление на границе в верхней части разреза | |||
| преломление на границе верхней части разреза | |||
| shallow refraction: 18 phrases in 5 subjects |
| Geophysics | 4 |
| Mining | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Seismology | 11 |
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