| |||
| 加载标准; 加荷标准 | |||
|
loading standard : 10 phrases in 4 subjects |
| Heavy equipment vehicles | 1 |
| Road construction | 1 |
| Technology | 7 |
| Wind Energy | 1 |
| |||
| 加载标准; 加荷标准 | |||
|
loading standard : 10 phrases in 4 subjects |
| Heavy equipment vehicles | 1 |
| Road construction | 1 |
| Technology | 7 |
| Wind Energy | 1 |