 |
| |||
| premixed truck; ready-mixed truck | |||
| 预拌混凝土拌运车: 5 phrases in 3 subjects |
| Bridge construction | 1 |
| Engineering geology | 1 |
| Technology | 3 |
|
| |||
| premixed truck; ready-mixed truck | |||
| 预拌混凝土拌运车: 5 phrases in 3 subjects |
| Bridge construction | 1 |
| Engineering geology | 1 |
| Technology | 3 |