cartographic projection

例句：

1. 1. The cartographer used a globe to create themap projection.
   制图员使用地球仪来制作地图投影。
2. 2. The map projection isessential for accurate navigation.
   地图投影对于准确的导航至关重要。
3. 3. The cartographer carefullymeasured the distance between the two points onthe map projection.
   制图员仔细测量了地图投影上两点之间的距离。