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| 露天采场边帮露天采场由台阶、倾斜坑线的坡面和平盘限定的表面总体及邻近岩体 | |||
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pit edge : 8 phrases in 3 subjects |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 6 |
| Technology | 1 |
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