 |
| |||
| upper chord; upper chord bar | |||
| top chord; top boom; upper chord member | |||
| |||
| top chord; principal rafter | |||
| 上弦杆: 34 phrases in 7 subjects |
| Architecture | 3 |
| Automobiles | 1 |
| Bridge construction | 3 |
| Engineering geology | 1 |
| General | 1 |
| Rail transport | 2 |
| Technology | 23 |
|
| |||
| upper chord; upper chord bar | |||
| top chord; top boom; upper chord member | |||
| |||
| top chord; principal rafter | |||
| 上弦杆: 34 phrases in 7 subjects |
| Architecture | 3 |
| Automobiles | 1 |
| Bridge construction | 3 |
| Engineering geology | 1 |
| General | 1 |
| Rail transport | 2 |
| Technology | 23 |