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浏览/检索结果: 共2条，第1-2条 帮助 限定条件 发表日期：2015    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 Multi-level precision piezoelectric driver, has connection ring fixed with lower side of substrate, and bi-stable unit cell structure whose two sides are mutually fixed with connecting column by connection ring in parallel manner. 专利 申请日期: 2015-01-01, 公开日期: 2015-01-07 作者:  GAO R XU J ZHANG Y ZHAO J WEI Y JIE 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/09 Automatic lifting platform integrated car, has inner pipe whose bottom end is provided with baffle plate and top end is provided with screw thread, and pressing block and single-way limit block connected with each other. 专利 申请日期: 2015-01-01, 公开日期: 2015-04-08 作者:  HAN X HU P WANG S ZHANG M YAO B JIE 收藏  |  浏览/下载：1/0  |  提交时间：2019/12/09