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rock core
| drill
| rock core | |
| bridg.constr. | 岩心 |
| drill | |
| agric. tech. | 排种装置; 条播机 |
| hydroel.st. | 钻孔 |
| manag. | 钻钻孔; 行 |
| met. | 钎子 |
| |||
| 岩心 | |||
| 岩芯 | |||
| rock core: 29 phrases in 8 subjects |
| Bridge construction | 4 |
| Electronics | 4 |
| Engineering geology | 5 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 6 |
| Metallurgy | 1 |
| Project management | 1 |
| Technology | 7 |
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