旋转曲面 xuánzhuǎnqūmiàn surface of revolution Origin Definitions Defs Strokes Stroke Words Sentences Sents 旋转 旋轉 xuánzhuǎn verbadjective to spin to rotate, revolve, or gyrate around a central point or axis曲面 qūmiàn curved surface curved surface; camber; the path or surface formed by a moving line in space