accurate contour

• 精确等高线

accurate contour的用法和样例：

例句

1. The figure shows a part of a contour map.
   附图是一幅等高线地图的一部分。
2. Care must be taken to distinguish artistically drawn form lines from accurately surveyed contour lines.
   一定要注意区分美术画的线条和准确测量的等高线线条的不同。