block pulley

英 美
  • 滑轮组;神仙葫芦
  • block n.街区;木块;石块;大楼;一组;阻塞(物);障碍(物)v.阻塞
  • pulley n.滑车;滑轮;皮带轮
    1. Crevasse rescue is one of the more complicated mountaineering techniques, sometimes requiring pulley systems and multiple haul lines.
      裂缝救援是一项更副复杂一些的登山技术,有时候需要滑轮组和多组拖曳绳。