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| sonic method | |||
| sonic method (определения напряжений в горных породах) | |||
| звуковой метод: 38 phrases in 14 subjects |
| Ecology | 1 |
| Electricity | 1 |
| Electrochemistry | 1 |
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| Geophysics | 6 |
| Makarov | 2 |
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| Oil / petroleum | 3 |
| Oil and gas technology | 1 |
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