With the speed controller on the push handle the attendant can easily control the motor power while guiding the chair.
随着对随之而来的推手柄可以方便地控制电机功率，同时指导椅子速度控制器。
2
Operating the engine-controlhandle, the engine speed can be controlled, then the flow of control system can change the operation speed of frame.
通过操作在多路换向阀旁的油门手柄，可控制发动机的转速，从而调节系统的流量改变机构的工作速度。
3
This train can handle up to eight cars at a time through the tight curves of the new flexible tracks using the new 4-channel, 7-speed infrared remote control.