 |
| |||
| 外界信号 | |||
| 外部信号 | |||
|
external-signal : 10 phrases in 5 subjects |
| Air defense | 1 |
| Cables and cable production | 1 |
| Information technology | 1 |
| Space | 1 |
| Technology | 6 |
|
| |||
| 外界信号 | |||
| 外部信号 | |||
|
external-signal : 10 phrases in 5 subjects |
| Air defense | 1 |
| Cables and cable production | 1 |
| Information technology | 1 |
| Space | 1 |
| Technology | 6 |