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。

Operating the engine-control handle, the engine speed can be controlled, then the flow of control system can change the operation speed of frame.

youdao

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。

Operating the engine-control handle, the engine speed can be controlled, then the flow of control system can change the operation speed of frame.

youdao