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| informational sign | |||
| information mark | |||
| message indicator | |||
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信息标志 : 10 phrases in 7 subjects |
| Aviation | 1 |
| Communications | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Information technology | 1 |
| Rail transport | 1 |
| Technology | 4 |
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