履带，链轨，导轨；

1. danci.edu.pub

1. 卡特皮勒履带车辆：Cassini's law || 卡西尼定律 | Caterpillar track || 卡特皮勒履带车辆 | Cedit || 赛迪特铬镍钨(刀具)硬质合金

2. 履带,链轨,导轨：caterpillar tank car ==> 履带坦克车 | caterpillar track ==> 履带,链轨,导轨 | caterpillar tractor ==> 履带拖拉机

1. an endless metal belt on which tracked vehicles move over the ground

    Synonym: trackcaterpillar tread