The topic of Energy saving on motor system has always being researched by scholars, and the variable frequency variable speed technology has been paid the focus attention among the researches.
电机节能问题一直是广大学者研究的热点，在电机节能技术中最受瞩目的是变频调速技术。
Variable speed cutting is a new technology of improving machining quality of part' s end plane.
变速切削是提高零件加工质量的一种新工艺办法。
The decoupled control of active power and reactive power is a key technology of variable speed constant frequency (VSCF) wind energy generation system.
双馈发电机的有功和无功功率的解耦控制是变速恒频（VSCF）风力发电系统的关键技术。
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