Design of the calibrating rack of a measuring instrument for contact wire geometry
LIU Jian-Wen, ZHANG Wen-Liang, LI Chao-Zheng, CHENG Shao-Lan, LIN Xian-Qi
J4 . 2013, (6): 82 -86 .  DOI: 10.3976/j.issn.1002-4026.2013.06.017