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| lower limit | |||
| least limit | |||
| 最小极限: 14 phrases in 9 subjects |
| Aviation | 1 |
| Business | 1 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Geophysics | 1 |
| Nautical | 1 |
| Rail transport | 1 |
| Space | 2 |
| Technology | 5 |
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