 |
| |||
| subcrust | |||
| base course; blanket; pavement subgrade blanket; road base; subbase | |||
| 路面底层: 5 phrases in 3 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| Technology | 3 |
|
| |||
| subcrust | |||
| base course; blanket; pavement subgrade blanket; road base; subbase | |||
| 路面底层: 5 phrases in 3 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| Technology | 3 |