round curve

• 圆曲线

round curve的用法和样例：

例句

1. The outlining curve of an isometric polygon is one of the un-rounded curves, it is difficult to measure its parameters and calculate the errors.
   摘要等距型面轮廓曲线为非圆曲线的一种，对其参数的测量和误差的计算比较困难，目前尚没有统一的评价标准。