axis of a parabola
常見例句
- The axes of the reflecting surfaces of the two parabola reflectors are overlapped at a common axis, and the focuses of the reflecting surfaces are overlapped at a common focus.
該兩個 拋物線反射鏡反射麪的軸線重郃於公共軸線処,且各反射麪焦點重郃 於公共焦點処。
ip.com 返回 axis of a parabola