 |
| |||
| 用带输送机装载 | |||
|
belt loading : 17 phrases, 6 sujets |
| Aviation | 1 |
| Construction navale | 1 |
| Exploitation minière | 1 |
| Métallurgie | 1 |
| Technologie | 12 |
| Transformation du bois | 1 |
|
| |||
| 用带输送机装载 | |||
|
belt loading : 17 phrases, 6 sujets |
| Aviation | 1 |
| Construction navale | 1 |
| Exploitation minière | 1 |
| Métallurgie | 1 |
| Technologie | 12 |
| Transformation du bois | 1 |