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| 车站信号; 测站觇标; 测站标志 | |||
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station signal : 40 phrases in 11 subjects |
| Air defense | 1 |
| Business | 2 |
| Construction | 1 |
| Earth sciences | 1 |
| Electronics | 3 |
| General | 3 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 25 |
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