一种定义
四种语言
0,1,2
- 德國
- 英語
- 中國
- 西班牙語
开启行程 (n)
Öffnungsweg (Aufzugstür) (m)
opening travel (n)
travel (n)
They can travel at speeds of up to six kilometres per hour.
Due to high wheel forces, travelling wheels installed in cranes have broad running surfaces.
The travelling wheels of very large cranes are often driven individually.
