绕圈子

• The pole is attached at the one end to an upright post , around which it can revolve , and at the other to a blind - folded camel , which walks constantly in a circle , providing the motive power to turn the stone wheel
  译文：滚轴的一端与一根立柱相连，使石磙可以绕立柱作旋转运动，另一端则套在一头蒙着眼罩的骆驼身上，通过骆驼不停地绕圈子走动来带动石滚旋转。