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浏览/检索结果: 共5条，第1-5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：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Water tank water position analyzing and testing method, involves printing standard grid image on grid paper, and analyzing water level edge line to determine change in water level corresponding to analysis point position. 专利 申请日期: 2015-01-01, 公开日期: 2015-08-19 作者:  DU H LI M MENG J 收藏  |  浏览/下载：5/0  |  提交时间：2019/12/09 Method for measuring movement shift information of double pulse image, involves placing two cameras around vision system, where first camera is provided with grating installation piece and second camera is installed with negative lens. 专利 申请日期: 2014-01-01, 公开日期: 2014-08-06 作者:  LI M DU H MENG J ZANG Z 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/11 Vision-reconstruction water tank inner target point space coordinate obtaining method, involves calculating correlation parameter, and correcting three-dimensional coordinates to obtain real position of underwater target point. 专利 申请日期: 2014-01-01, 公开日期: 2014-06-18 作者:  DU H LI M MENG J 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/11 Continuous method of preparing N,N-dimethyl-1,3-propylene diamine involves mixing dimethylamine and acrylonitrile as raw material in fixed bed reactor, and adjusting reaction temperature, pressure and space velocity. 专利 申请日期: 2013-01-01, 公开日期: 2013-10-02 作者:  DENG C DU J LI Y MENG Q QING H 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/13 Preparation of dihydroxydiphenyl ether involves reacting 1,3-butane diol with cation exchange resin as catalyst, cooling, filtering and evaporating under reduced pressure. 专利 申请日期: 2013-01-01, 公开日期: 2013-09-25 作者:  YAO H LI Z LIU G MENG Q DU J ZHU X 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/13