| |||
| 故障频率 | |||
|
fault frequency : 8 phrases in 6 subjects |
| Air defense | 1 |
| Electric machinery | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Space | 1 |
| Technology | 3 |
| |||
| 故障频率 | |||
|
fault frequency : 8 phrases in 6 subjects |
| Air defense | 1 |
| Electric machinery | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Space | 1 |
| Technology | 3 |