抛物线的光学性质：所有从焦点�出的光经过反射会平行射�远方。怎么用平面几何证明？ 知乎 Sketch Coloring Page

抛物线的光学性质：所有从焦点�出的光经过反射会平行射�远方。怎么用平面几何证明？ 知乎 Template

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anonymous

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sketch #2810 Lennon by El Harouati Nassera

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sketch #4691 Itachi by Jaqueline Salazar

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sketch #3260 sorry to over comment on your blog .haha. I 'm just flnpiipg through your posts after finding you through the KCWC. Recently I had this huge urge to learn to sketch with black ink pens. This cloud drawing is exactly the thing that I feel the need to put on paper. : )

anonymous

anonymous
sketch #3260 sorry to over comment on your blog .haha. I 'm just flnpiipg through your posts after finding you through the KCWC. Recently I had this huge urge to learn to sketch with black ink pens. This cloud drawing is exactly the thing that I feel the need to put on paper. : )

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sketch #249 Rocket

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sketch #5047 Pikachu and Raichu by Saiful Farizam

anonymous

anonymous
sketch #5047 Pikachu and Raichu by Saiful Farizam

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sketch #5078 Naruto by Shimun Yeyo Ahmed

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sketch #519 The Joker

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sketch #1668 SUNSET

anonymous

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sketch #2856 Merry Christmas from Melany Campano Laos Komlós László

anonymous

anonymous
sketch #2856 Merry Christmas from Melany Campano Laos Komlós László

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