The stator is multiphase windings and outer rotor is PM structure. The wind turbine and generator is coupled directly without gear.
该定子为多相绕组，外转子为永磁结构，风轮与发电机直接耦合。
Single-screw pump is a new volume of the inner rotary gear pump. The main working parts are eccentric screw (rotor) and fixed bushing (stator).
单螺杆泵是一种新型的内啮合回转式容积泵。主要工作部件是偏心螺杆（转子）和固定的衬套（定子）。
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