pantograph
/ˈpæntəʊgrɑːf, (us)-græf/noun
1
- an instrument for copying a plan or drawing on a different scale by a system of hinged and jointed rods缩放仪, 比例绘图仪。
2
- a jointed framework conveying a current to a train, tram, or other electric vehicle from overhead wires（电动车辆上的）导电弓（架）。
派生词
pantographic
adjective词源
early 18th cent.: from PANTO- 'all, universal' + Greek -graphos 'writing'.