 |
| |||
| emergency communications; crisis communications | |||
| emergency communication | |||
| crisis communication | |||
| 应急通 信: 61 phrases in 13 subjects |
| Air defense | 2 |
| Aviation | 6 |
| China | 1 |
| Communications | 4 |
| Computer networks | 1 |
| Cryptography | 1 |
| Electronics | 23 |
| General | 2 |
| Rail transport | 1 |
| Space | 10 |
| Technology | 8 |
| Telecommunications | 1 |
| United States | 1 |
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