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Non-contact energy transfer device for rotary-type ultrasonic processing device, has switching plate connected with end of main shaft, and rotating coil wound in annular groove at outer side of inner groove of rotating magnetic core. 专利
申请日期: 2015-01-01, 公开日期: 2015-03-25
作者:  DONG Z KANG R SUN L ZHOU P LIU J WA
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