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浏览/检索结果: 共3条，第1-3条 帮助 限定条件 内容类型：专利     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择发表日期升序发表日期降序提交时间升序提交时间降序题名升序题名降序作者升序作者降序 Single-lens palm vein and palmprint image acquisition apparatus and image enhancement and segmentation method 专利 申请日期: 2016-01-01, 作者:  GUO JINGYU;  LI JUNLIN;  TAO LIANG;  LI MENGWEN;  SHI JUN 收藏  |  浏览/下载：6/0  |  提交时间：2019/04/19 Pressure and displacement measuring and controlling device, has displacement sensor whose measuring end is plugged into through hole of fixing block, and displacement measuring rod whose threaded end is screwed into upper bearing mold plate. 专利 申请日期: 2009-01-01, 公开日期: 2009-03-18 作者:  LIANG J LIU C MA T SHI W WANG L 收藏  |  浏览/下载：1/0  |  提交时间：2019/12/24 Micro fuel cell metallic flow field plate manufacturing technique, involves manufacturing masking layer on metallic piece surface through lithography, and processing tiny structure via chemical etching or electro-chemical etching method. 专利 申请日期: 2008-01-01, 公开日期: 2008-07-16 作者:  LIU C SUN L LIANG J SHI W WANG L 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/27