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一种抽油机用开关磁阻驱动系统的控制方法

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First Author:sunjianzhong

Disigner of the Invention:温洪彬,baifengxian,王娇龙,钟启濠,王晨

Application Number:CN201510939118.5

Authorization Date:2015-12-15

Authorization number:CN105429554A

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