平移钻臂 traveling slewing-boom stacker: 移动式摆臂堆料机parallel boom truss: 生代2-boom rock drill: 二臂凿岩台车single boom drill rig: 单臂凿岩台车parallel shank core drill: 直柄扩孔钻下载手机词典可随时随地查词查翻译