noun🔗Share圆环面，环形体。 A surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane."The inner tube of a bicycle tire has a toroid shape. "自行车内胎是圆环面的形状 (zìxíngchē nèitāi shì yuánhuánmiàn de xíngzhuàng).mathphysicsstructurespaceChat with AIVocabulary GamePractice Reading
noun🔗Share圆环体，环面体。 A ring-shaped object whose surface is a torus."The science experiment demonstrated a toroid, a ring-shaped magnet, generating a strong magnetic field. "这个科学实验展示了一个圆环体，也就是一个环形的磁铁，它产生了一个强大的磁场。mathphysicsstructureChat with AIVocabulary GamePractice Reading
