在没有轨道或轨道的情况下运行的运输设备的属性。无轨运输设备可以自由移动和/或轨道安装和/或配备强制转向。根据定义，工业车辆是无轨和地面运输的。

        Property of conveying and transporting equipment that is operated without a rail system or tracks. Railless conveying and transporting equipment can be freely moveable and/or rail-mounted and/or equipped with forced steering. By definition industrial trucks are railless and ground-based.