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| 光面爆破; 地面爆破在地表进行的爆破作业 | |||
| 露头爆破; 露天爆破; 地面爆破; 表面爆破 | |||
| surface blasting: 18 phrases in 3 subjects |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 14 |
| Technology | 3 |
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