range finder prism

例句：

1. 1. The rangefinder prism is used to measurethe distance between two points on a map.
   测距仪棱镜用于测量地图上两点之间的距离。
2. 2. The range finder prism was invented by a scientist who wantedto improve navigation.
   测距仪棱镜是由一位科学家发明的，他想要改进导航。
3. 3. Therange finder prism isan essential tool for surveyors andengineers.
   测距仪棱镜是测量员和工程师们必不可少的工具。