noun ダウンロード 🔗共有 放物面 A surface having a parabolic cross section parallel to an axis, and circular or elliptical cross section perpendicular to the axis; especially the surface of revolution of a parabola. Examples : "The satellite dish is a paraboloid shape, focusing radio waves to a single point. " 衛星アンテナは放物面の形状をしており、電波を1点に集めます。 math physics technical structure AIとチャット語彙ゲーム読解練習