#caterpillar_tread__caterpillartread__caterpillar_tracks a belt around wheels to grip rough ground
supertype: belt.loop endless loop of flexible material between two rotating shafts or pulleys
subtype: half_track caterpillar tread goes around only rear wheels
part of: bulldozer__dozer large powerful tractor; a large blade in front flattens areas of ground
part of: Caterpillar__cat (trademark) a tractor that is driven by caterpillar tracks
part of: army_tank__tank__armored_combat_vehicle an enclosed armored military vehicle; has a cannon and moves on caterpillar treads
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