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| характеристика породной толщи | |||
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| геомеханическая классификация З. Бенявского (RMR soa.iya) | |||
| English thesaurus | |||
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| RMR (характеристика породной толщи soa.iya) | |||
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rock mass rating : 5 phrases in 3 subjects |
| General | 3 |
| Hydroelectric power stations | 1 |
| Technology | 1 |
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