拖拽装置 draging device
绞车架 supporting rack for drawworks
支房架 supporting rack, mud tank
右前底座 right front basement
人字架前腿 front leg of gin pole
人字架后腿 rear leg of gin pole
后立柱 rear standing pole
人字架小撑架 tip support of gin pole
左前底座 left front basement
坡道 ramp
滑道 escape slide
挂梯 hanging l[收起]