 |
| 维修手册: 40 phrases in 10 subjects |
| Automobiles | 2 |
| Aviation | 20 |
| Economy | 4 |
| Electronics | 5 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Technology | 4 |
| Textile industry | 1 |
| Wind Energy | 1 |
|
| 维修手册: 40 phrases in 10 subjects |
| Automobiles | 2 |
| Aviation | 20 |
| Economy | 4 |
| Electronics | 5 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Technology | 4 |
| Textile industry | 1 |
| Wind Energy | 1 |