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Power generating device for use in shallow ocean areas, has rear optical shaft provided into floating body rear flute via upper end plate rear hole, rear upper compression spring, feeding rear side plate hole and lower end plate rear hole. 专利
申请日期: 2011-01-01, 公开日期: 2011-09-14
作者:  CHU J YAO F XIONG Y HAN B
收藏  |  浏览/下载:8/0  |  提交时间:2019/12/18
Pint-size precise bearing fall-form continuous ultrasonic cleaning method, involves sinking batch bearings to ultrasonic cleaning liquid groove in way of continuous fall-form from outside via height difference of spiral flute on cylinder. 专利
申请日期: 2008-01-01, 公开日期: 2008-04-30
作者:  WANG L WANG X XU W
收藏  |  浏览/下载:1/0  |  提交时间:2019/12/27


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