free-vortex-type的意思|示意

Vortex diodes pump is a new-type maintenance-free equipment with no moving parts for pumping hazardous liquids.

涡流二极管泵输送设备是一种新型的用于高危物料输送的无运动部件的免维修输送系统。

Vortex also called left turn, is the axis of rotation happened a self-excited vibration, it is neither has the free vibration characteristics, also do not belong to the type of forced vibration.

涡动又称甩转，是旋转轴发生的一种自激振动，它既不具有自由振动的特征，也不属受迫振动的类型。