A.A battery-operated system on the train will control and bring the cars to a smooth stop.B.The magnetic attraction will hook the cars firmly.C.The cars equipped with a device will run in a special guide way.D.The internal power will keep the cars steady.
A.A battery-operated system on the train will control and bring the cars to a smooth stop.
B.The magnetic attraction will hook the cars firmly.
C.The cars equipped with a device will run in a special guide way.
D.The internal power will keep the cars steady.