一种三臂凿岩台车推进梁上顶盘的改造

胡卫平

Conversion of Top Plate on Propulsion Beam of a  Kind of Threeboom Rockdrilling Jumbo

HU Weiping

隧道建设 . 2017, (11): 1488 -1491 . DOI: 10.3973/j.issn.2096-4498.2017.11.020