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| 人工地震 | |||
| 人为地震 | |||
| 人工地震人工地震则属人为有意制造的地震，震源分为炸药震源和机械震源 | |||
| 人造地震 | |||
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artificial earthquake : 4 phrases in 3 subjects |
| Bridge construction | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Technology | 1 |
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