英數兩全字詞教學

47   平面的法線 Perpendicularity

1. definition   定義

2. premise   前提

3. foot   垂足

4. perp   \(\perp\) 垂直符號

5. normal line   法線

6. perpendicularity   垂直性

7. orthogonal   正交的

8. orthogonality   正交性

9. a line perpendicular to the plane   垂直於平面的直線

10. Theorem of Three Perpendiculars   三垂線定理

11. Line-Plane Perpendicularity Theorem   法線定理

12. a line is perpendicular to two different lines that lie in a plane and pass through its foot   直線垂直於平面上通過垂足的兩相異直線

13. The line is perpendicular to every line in the plane that passes through its foot.   直線垂直於平面上通過垂足的所有直線

14. When a line is perpendicular to a plane, the plane is also said to be perpendicular to the line.   當直線垂直於平面，平面亦垂直於直線。

15. Given a point and a plane, through the point pass a line perpendicular to the plane.   給定一點與一平面，可作唯一過該點而垂直於平面的法線。