catenary curve

• 垂曲线,悬链线

catenary curve的用法和样例：

例句

1. The problems of the touchdown point of steel catenary risers are briefly discussed.
   并简要论述钢悬链线立管触地点问题的研究结论。
2. 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。