negative variation

英 美
  • 负变,负变分,负变差
  • negative adj.否定的;消极的;负面的;负的n.否定;反面意见;底片;[数]负数vt.否定
  • variation n.变种;变奏曲;变动;变化
    1. By designing the negative shift for the sprocket, its trajectory coincides with the theoretical one, and the meshing quality is improved.
      通过对链轮的负变位设计,使运动轨迹与理论轨迹重合,提高了啮合质量,并对啮合的重合度作了分析计算,对重合度的选择提供了依据。