grade crossing
短语词组
- grade separated crossing 分隔过路处
- grade pedestrian crossing 地面行人过路处
- at grade pedestrian crossing 地面行人过路处
- grade roundabout crossing 平面环形交叉路口
- at -grade pedestrian crossing 地面行人过路处
- separate grade crossing 立体交叉道
- grade -separated crossing 分层过路处
- at grade crossing 平面交叉
- protective grade crossing 防护道口 返回 grade crossing