tractors拖拉机
tractorn.【C】拖拉机;牵引车
tractor and semi-trailer拖拉机和半挂车组成的货运车
Tractor transmission system拖拉机传动系
tractor cram-shell bucket曳车蟹壳桶
tractor trailer type aerial牵引挂车式云梯车
tractor-trailer engagement牵引车与挂车的连接
tractor rocket escape system牵引救生装置
tractor running on the roads道路行驶拖拉机
tractor type universal joint凸块式等速万向节