The accomplishing method is that the attack angles of aerodynamic forces are made changing along transmission line so aerodynamic forces are made being approximate balance state by spiral winding plastic belt on transmission line.

 
  • 实现的方法是在输电线螺旋地缠绕横截面为三角形的塑料带,使气动力的攻角沿输电线的长度方向周期性地变化,使作用在输电线上的气动力近似地成为平衡力系。
今日热词
目录 附录 查词历史