Defect Detecting Technology for over 100-meter Shaft
TANG Luliang, ZI Chenbo, LI Qingquan, CHU Xu, LIU Haibo, CHEN Xi, SUN Fei
Acta Geodaetica et Cartographica Sinica . 2018, (2): 260 -268 .  DOI: 10.11947/j.AGCS.2018.20170522