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Method of using fixing device for pulling metal rod used in civil engineering field, involves attaching a wedge block to an end of a sub-block by hammering process for fastening the metal rod with the wedge block. 专利
申请日期: 2016-01-01, 公开日期: 2016-02-24
作者:  DONG H GUO B HAN Y LI J WANG B CHAN
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/09
Replacement enhancement type immersed tube tunnel anti-water joint structure used in engineering testing field, has steel portion and high expand rubber block which are connected with omega water-stop belt. 专利
申请日期: 2015-01-01, 公开日期: 2015-05-20
作者:  GUO X TAN Y ZHANG Z WANG Z
收藏  |  浏览/下载:2/0  |  提交时间:2019/12/09
Diffusion-type curve flip bucket for hydraulic engineering dam construction, has ogee section curve connected at back of flood discharging tunnel brae section, and small ogee section connected to back of big ogee section. 专利
申请日期: 2008-01-01, 公开日期: 2008-01-09
作者:  NI H LIU Y JIN D
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/27
Long wavelength vertical cavity surface emitting laser 专利
专利号: US6931042, 申请日期: 2005-08-16, 公开日期: 2005-08-16
作者:  CHOQUETTE, KENT D.;  KLEM, JOHN F.
收藏  |  浏览/下载:2/0  |  提交时间:2020/01/18


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