Torus - Encompassing
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A torus is a surface of revolution that is created when a circle is rotated around a straight line that does not intersect with the circumference on a plane. The surface of a torus that has a doughnut shape. A ring surface. A torus. Source: About Shogakukan Digital Daijisen Information | Legend |
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平面上に円周とそれに交わらない直線があるとき、この直線を軸にして円周を回転したときできる回転面。ドーナツ形になる円環体の表面。輪環面。トーラス。
出典 小学館デジタル大辞泉について 情報 | 凡例 |
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