quadrant of truncated cone

例句：

1. 2.
   地图上的
2. 3.
   在数学中
3. 1. The quadrant of the map is where we are heading.
   地图上的这个象限是我们正朝的方向。
4. 2. The scientist used a quadrant to measure the angle of the sun.
   科学家用一个四分仪来测量太阳的角度。
5. 3. The company's quadrant is expected to grow rapidly in the next few years.
   该公司的这一部分预计在未来几年将快速增长。