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| 光学件: 120 phrases in 11 subjects |
| Agriculture | 2 |
| Aviation | 4 |
| Computers | 1 |
| Electronics | 33 |
| General | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Space | 10 |
| Technology | 61 |
| Telecommunications | 5 |
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