Pi ruler apparatus for measuring size of workpiece, has enclosed ring whose size is measured by using component of initial measuring unit. | |
LIU W GAO H WANG X LI Z WANG D | |
2011 | |
公开日期 | 2011-05-04 |
URL标识 | 查看原文 |
申请日期 | 2010-10-21 |
内容类型 | 专利 |
URI标识 | http://www.corc.org.cn/handle/1471x/4852810 |
专题 | 大连理工大学 |
作者单位 | UNIV DALIAN TECHNOLOGY (UYDA-C |
推荐引用方式 GB/T 7714 | LIU W GAO H WANG X LI Z WANG D. Pi ruler apparatus for measuring size of workpiece, has enclosed ring whose size is measured by using component of initial measuring unit.. 2011-01-01. |
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