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система разработки с закладкой
| очистного пространства
| система разработки с закладкой | |
| mining. | 充填采矿法 |
| очистное пространство | |
| mining. | 回采区; 回采场 |
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| 充填采矿法 | |||
| 充填开采法 | |||
| система разработки с закладкой: 16 phrases in 4 subjects |
| General | 8 |
| Mineralogy | 1 |
| Mining | 6 |
| Technology | 1 |
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