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主机 控制 : 31 phrases in 10 subjects |
| Air defense | 1 |
| Artificial intelligence | 1 |
| Automobiles | 1 |
| Aviation | 5 |
| Electronics | 11 |
| Multimedia | 1 |
| Nautical | 1 |
| Shipbuilding | 1 |
| Space | 3 |
| Technology | 6 |
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