But when dragging the lood with constant power, erratic runningpoint exists.
但在拖动恒功率负载运行时，存在不稳定的运行点。
2
When the system runningpoint change, the dynamic character would make obvious change accordingly.
当系统的运行点改变时系统的动态特性会显著改变。
3
The principle, method, design process and change result to enlarge capacity of maximum efficiency runningpoint and improve hydraulic performance of double suction pump were presented.