chain line

英 美
  • 链线
  • chain n.束缚;链条;链;(一)连串;连锁店(常用复数)vt.束缚;用铁链锁住
  • line n.线;界线;皱纹;路线;航线;行;台词;行业;绳子;家族v.排队;画线;加衬里
    1. Look, under the square wheel, there is a curved line, which is called catenary in mathematics.
      你看,方轮下面的路线是一条曲线,这条曲线在数学上是一条悬链线。