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| code distance | |||
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码距 : 53 phrases in 13 subjects |
| Air defense | 3 |
| Artificial intelligence | 1 |
| Automobiles | 2 |
| Cartography | 2 |
| Computers | 2 |
| Cryptography | 1 |
| Electronics | 4 |
| Information technology | 3 |
| Rowing | 1 |
| Space | 16 |
| Swimming | 1 |
| Technology | 10 |
| Telecommunications | 7 |
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