 |
| 平均 故障时间: 161 phrases in 24 subjects |
| Air defense | 6 |
| Automobiles | 9 |
| Aviation | 31 |
| Business | 8 |
| Computer numerical control | 1 |
| Drilling | 1 |
| Economy | 3 |
| Electric machinery | 4 |
| Electronics | 37 |
| General | 7 |
| Hydroelectric power stations | 2 |
| Information technology | 7 |
| Mathematics | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil processing plants | 1 |
| Rail transport | 1 |
| Space | 23 |
| Technology | 8 |
| Telecommunications | 1 |
| Textile industry | 2 |
| Transport | 1 |
| Wind Energy | 3 |