 |
| |||
| reading dial | |||
| 读数盘: 20 phrases in 7 subjects |
| Aviation | 1 |
| Compressors | 1 |
| Electronics | 1 |
| Oil / petroleum | 4 |
| Plastics | 2 |
| Project management | 1 |
| Technology | 10 |
|
| |||
| reading dial | |||
| 读数盘: 20 phrases in 7 subjects |
| Aviation | 1 |
| Compressors | 1 |
| Electronics | 1 |
| Oil / petroleum | 4 |
| Plastics | 2 |
| Project management | 1 |
| Technology | 10 |