一种定义
四种语言
0,1,2
- 德國
- 英語
- 中國
- 西班牙語
轨道 (n)
Lauf (Aufzugstür) (f)
track (n)
Plastic wheel rim that leaves no visible tracks behind it.
They can roll against a track in the lower part and upper part.
In case of unforeseen events, a tailhook secures the track guidance.
