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| 断层下盘; 断层下盘 | |||
| 底帮｛矿｝ | |||
| 底板 | |||
| 底帮位于露天采场矿体底板侧的边帮 | |||
| 下盘 | |||
| 底盘 | |||
| 矿脉基座; 矿床底板; 基础墙; 底垫; 底帮; 坝趾齿墙; 底壁 | |||
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foot wall : 2 phrases in 1 subject |
| Technology | 2 |
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