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| 桩 〔击〕锤 | |||
| 砸击入式管子的冲击锤 | |||
| 桩锤; 套管打入锤 | |||
| 击锤; 打桩锤 | |||
| driving hammer: 17 phrases in 4 subjects |
| Bridge construction | 5 |
| Engineering geology | 2 |
| Oil / petroleum | 2 |
| Technology | 8 |
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