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| 单基的; 单元的 | |||
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| 单基座; 单基础 | |||
| single-base: 23 phrases in 10 subjects |
| Agriculture | 4 |
| Aviation | 1 |
| Chemistry | 1 |
| Electronics | 2 |
| Explosives and Explosive Ordnance Disposal | 3 |
| Geophysics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| Technology | 7 |
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