 |
| |||
| top flange; upper flange; top chord | |||
| upper chord, top boom; upper chord; top boom; top member; upper boom | |||
| wicket | |||
| safety cinch | |||
| Obergurt: 4 短语, 1 学科 |
| 建造 | 4 |
|
| |||
| top flange; upper flange; top chord | |||
| upper chord, top boom; upper chord; top boom; top member; upper boom | |||
| wicket | |||
| safety cinch | |||
| Obergurt: 4 短语, 1 学科 |
| 建造 | 4 |