基本解释球形同根派生 英汉例句Geometry that is magnetic is round in nature.磁性的几何学性质上是球形的。Nature provides no unoccupied gap between round and nonround shapes, so any boundary would be an arbitrary choice.大自然并未在正球形与非球形间设下明显的界线，所以任何的边界值都只是人类恣意的选择。