[[[cp|w:590|h:401|a:c|u:http:file1.qidian.comchapters2011511847227634398383982185186447777.jpg]]]‘滑轮’四管变形阵地炮：用小型工地材料运输车，加装‘城防用四管速射炮’改装而成的移动式炮车