旋转曲面 Traditional 旋轉曲面 xuán zhuǎn qū miàn 🔊 a surface of revolution (math.) + Review this word Meanings xuán zhuǎn qū miàn 旋轉曲面 a surface of revolution (math.) Its characters 旋xuánto revolve转zhuǎnto turnHSK 4曲qūbentHSK 6面miànfaceHSK 2