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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 发表日期：2018    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 DIFUNCTIONAL COMPOSITE FILTER MEDIUM FIBER AND PREPARATION METHOD THEREFOR 专利 申请日期: 2018-12-27, 公开日期: 2018-12-27 作者:  Wang D(王栋);  Peng Y(彭悦);  Han KH(韩奎华);  Lu CM(路春美);  Niu SL(牛胜利) 收藏  |  浏览/下载：14/0  |  提交时间：2020/01/04 Large-thrust vector vertical testing device structure, has calibration plate fixed on top plate, central pull rod connected with hydraulic cylinder, and connecting cylinder whose lower end is connected to hydraulic power system by bolt. 专利 申请日期: 2018-01-01, 公开日期: 2018-03-16 作者:  ZHANG J LI M JIA Z REN Z LU W CHANG 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/02 Visual stitching measurement based error analysis method, involves establishing error of coordinates of coordinate of point to be measured in visual coordinate system in predetermined manner. 专利 申请日期: 2018-01-01, 公开日期: 2018-02-23 作者:  LIU W LAN Z ZHANG Y ZHANG Z DI H LU 收藏  |  浏览/下载：6/0  |  提交时间：2019/12/02 Staggered guide vane for reducing radial force on closed impeller used in hydraulic component, has two-component blades are respectively set in annular rib plate and front and rear cover plates, where two component blades are staggered. 专利 申请日期: 2018-01-01, 公开日期: 2018-03-23 作者:  WANG X ZHOU F XIE R ZHANG K LU Y 收藏  |  浏览/下载：7/0  |  提交时间：2019/12/02 PVT heat pump energy storage type cold and heat combined supply system, has refrigerant single-way valve set connected with liquid storage tank, and refrigerant electromagnetic valves that respectively are connected with inlet and outlet. 专利 申请日期: 2018-01-01, 公开日期: 2018-02-23 作者:  ZHANG J LIANG R ZHOU C LU S CHEN J 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/02