| |||
| 打桩方法 | |||
| |||
| 打桩方法 | |||
|
pile driving method : 18 phrases in 5 subjects |
| Bridge construction | 3 |
| Electronics | 1 |
| Engineering geology | 1 |
| Road construction | 1 |
| Technology | 12 |
| |||
| 打桩方法 | |||
| |||
| 打桩方法 | |||
|
pile driving method : 18 phrases in 5 subjects |
| Bridge construction | 3 |
| Electronics | 1 |
| Engineering geology | 1 |
| Road construction | 1 |
| Technology | 12 |