Accomplish experiment contentsï 1.Basic electric control a) Lights on control b) Lights out control c) And logic control d) Or logic control e) Logic combination contro f) Relay self-lock control g) The usage of proximity sensor 2. Hydraulic control circuit a) manual shuttle valve reversing circuit b) solenoid valve reversing circuit c) lock circuit 3. Pressure control circuit a)Single grade pressure regulating circuit b) Secondary level pressure regulating c) Single pressure reducing circuit d) Level 2 pressure circuit e) The unloading circuit using manual shuttle valves f) The unloading circuit using pilot relief valve g) The balance circuit using the sequence valve h) Liquid control one-way valve pressure maintenance. i) The one-way back pressure circuit using using relief valve 3. The flow speed circuit using throttle valve 4. Speed regulator circuit using speed regulator valve a) Enter oil-way throttle speed regulation b) Back oil-way throttle speed regulation c) Side oil-way throttle speed regulation d) Speed synchronous circuit of the speed regulation valve e) Parallel circuit of the speed regulation valve f) Series circuit of the speed regulation valve 5. fast moving circuit of hydraulic cylinder connection 6. Sequence action circuit using sequence valve 7. Sequence action circuit use stroke switch control 8. Sequence action circuit use pressure relay control 9. One-way atresia circuit use hydraulic control one-way valve 10. Double-way atresia circuit use hydraulic control one-way valve 11. Locking circuit use o type manual shuttle valve 12. Relay control hydraulic basic circuit 13. The other circuit design by themselves