1·None shaft spiral vane are used more and more widely. In this paper, the design of material transporting equipment for thick spiral vane wimble rolling machine was introduced from its instruction.
无轴螺旋叶片的应用越来越广泛，这里从结构上介绍了厚螺旋叶片的锥辊辗轧机喂料装置的核心设计，该装置较好地满足了生产的需要。
2·The utility model provides an early-warning vertebra bow base screw wimble, which relates to a surgery device.
本实用新型可预警的椎弓根螺锥，涉及一种外科手术器具。