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通信灯 : 40 phrases in 12 subjects |
| Automobiles | 6 |
| Aviation | 2 |
| China | 1 |
| Construction | 1 |
| Electronics | 3 |
| General | 2 |
| Industry | 1 |
| Nautical | 4 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Shipbuilding | 5 |
| Technology | 13 |
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