| |||
flange | |||
base of rail | |||
rail base; rail chair; rail flange; rail foot | |||
rail base (座); rail bottom; rail foot (座) | |||
| |||
rail chair |
轨底: 47 phrases in 9 subjects |
Architecture | 2 |
Aviation | 1 |
Bridge construction | 3 |
Chemistry | 2 |
Earth sciences | 1 |
Metallurgy | 6 |
Rail transport | 1 |
Steel production | 1 |
Technology | 30 |