contour curve

例句：

1. 1. The artist drew a beautiful contour curve on the canvas.
   艺术家在画布上画了一条美丽的轮廓线。
2. 2.The car's body is made of a smooth contour curve.
   汽车的车身是由光滑的轮廓曲线制成的。
3. 3. The engineer used a computer program to create a precise contour curve.
   工程师使用计算机程序创建了一个精确的轮廓曲线。