third angle projection drawing

例句：

1. 1. The engineer used a third-angle projection to calculate the distance between two points on the map.
   工程师使用第三角投影来计算地图上两点之间的距离。
2. 2.This is a third-angle projection drawing of the city's skyline.
   这是城市天际线的第三角投影图。
3. 3. In architectural design, third-angle projection drawings are often used to visualize complex structures.
   在建筑学设计中，第三角投影图常被用来可视化复杂的结构。