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一种多头双导程线接触偏置蜗杆传动副齿形角优化方法

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Type of Patent : 发明

Application Date : 2018-06-09

Application Number : CN202110029639.2

Publication Date : 2021-05-14

Issue Date : 2023-02-07

Authorization number : ZL 201810692155.4

Service Invention or Not : yes

Status : 授权

Pre One : 超声加工振动系统可靠性试验装置

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