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| 硬 土: 275 phrases in 26 subjects |
| Agriculture | 5 |
| Animal husbandry | 1 |
| Architecture | 21 |
| Bridge construction | 18 |
| Business | 2 |
| Chemistry | 2 |
| Construction | 5 |
| Desert science | 7 |
| Drilling | 2 |
| Earth sciences | 3 |
| Electronics | 7 |
| Engineering geology | 19 |
| Explosives and Explosive Ordnance Disposal | 2 |
| General | 7 |
| Geology | 1 |
| Hydroelectric power stations | 12 |
| Metallurgy | 15 |
| Mineralogy | 1 |
| Navigation | 1 |
| Oil / petroleum | 8 |
| Phytophathology | 1 |
| Project management | 1 |
| Road works | 1 |
| Soil science | 2 |
| Technology | 130 |
| Textile industry | 1 |
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