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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 Optical fiber grating-based asphalt pavement material side stability sensor, has unstressed metal sheet fixed on metal cylinder, and optical fiber grating fixed on unstressed metal sheet to perform temperature compensation. 专利 申请日期: 2014-01-01, 公开日期: 2014-05-14 作者:  CAO D XING X ZHOU Z LIU W ZHAO Y JI 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/11 Synthesis of aza quat. carbon primary amine by using styrene acidic resin as catalyst, under normal pressure, mixing tertiary alcohol, urea, and styrene acidic resin for reaction, refluxing, and conducting filtering and recovery treatment. 专利 申请日期: 2013-01-01, 公开日期: 2013-02-13 作者:  MA E ZHOU X FENG L CHEN J CHEN Y JI 收藏  |  浏览/下载：8/0  |  提交时间：2019/12/13 Suspension bracket for ship superstructure lifting, has transverse members i.e. transverse H shape cross section beam, row of lifting holes formed at lower part of vertical plate close to lower panel. 专利 申请日期: 2008-01-01, 公开日期: 2008-07-23 作者:  WANG J ZHOU B LIU Y DENG Y JI Z 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/27