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椭圆无处不在

椭圆无处不在. 自然界的椭圆. 生活中的椭圆. 自然中类似椭圆的物体无处不在. 派潭镇高滩村频频地陷. 生活中类似椭圆的物体无处不在. 椭圆是生活中自然、和谐、美的化身之一. Ⅰ 圆形 脸适合细长型或方型的眼镜框。 Ⅱ 方形 脸适合圆型眼镜框。 Ⅲ 椭圆 脸的人只要喜欢的款式都可以戴。. Ⅰ 方脸型 头发宜向上梳，轮廓应蓬松些，而不宜把头发压得太平整 。. Ⅱ 圆脸型 常会显得孩子气，发型不防设计得老成一点，不宜留刘海 。. Ⅲ 椭圆脸型 这是女性中最完美的脸型， 采用长发型和短发型都可以 。.

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椭圆无处不在

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  1. 椭圆无处不在 自然界的椭圆 生活中的椭圆

  2. 自然中类似椭圆的物体无处不在 派潭镇高滩村频频地陷

  3. 生活中类似椭圆的物体无处不在

  4. 椭圆是生活中自然、和谐、美的化身之一 Ⅰ圆形脸适合细长型或方型的眼镜框。 Ⅱ方形脸适合圆型眼镜框。 Ⅲ椭圆脸的人只要喜欢的款式都可以戴。 Ⅰ方脸型 头发宜向上梳，轮廓应蓬松些，而不宜把头发压得太平整。 Ⅱ圆脸型 常会显得孩子气，发型不防设计得老成一点，不宜留刘海。 Ⅲ椭圆脸型 这是女性中最完美的脸型， 采用长发型和短发型都可以。

  5. 平面上到两个定点（F1 ,F2）的距离之和为常数2a (2a>lF1F2l)的点的轨迹叫做椭圆。F1 ,F2叫做椭圆的焦点。lF1F2l叫做椭圆的焦距。

  6. 检测巩固,提升思维 对定义的理解和掌握程度

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