 |
| |||
| 轨底 | |||
| rail bottom: 48 phrases in 9 subjects |
| Architecture | 6 |
| Automobiles | 2 |
| Bridge construction | 1 |
| Economy | 1 |
| International trade | 1 |
| Logistics | 1 |
| Metallurgy | 4 |
| Rail transport | 1 |
| Technology | 31 |
|
| |||
| 轨底 | |||
| rail bottom: 48 phrases in 9 subjects |
| Architecture | 6 |
| Automobiles | 2 |
| Bridge construction | 1 |
| Economy | 1 |
| International trade | 1 |
| Logistics | 1 |
| Metallurgy | 4 |
| Rail transport | 1 |
| Technology | 31 |