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| 分布模型 | |||
| distribution model: 26 phrases in 11 subjects |
| Aviation | 1 |
| Business | 3 |
| Computer networks | 1 |
| Earth sciences | 1 |
| Electronics | 3 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 4 |
| Space | 1 |
| Technology | 9 |
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