平面 píng miàn 🔊 plane HSK 7–9 + Review this word Meanings píng miàn (geometry) planeflat surfaceflat; two-dimensional Its characters 平píngflat; level; smoothHSK 5面miànfaceHSK 2 Words with 平面 海平面 hǎi píng miàn sea level 水平面 shuǐ píng miàn horizontal plane 平面图 píng miàn tú a plan 平面镜 píng miàn jìng plane mirror 平面波 píng miàn bō a plane wave 平面几何 píng miàn jǐ hé plane geometry 平面角 píng miàn jiǎo plane angle 平面媒体 píng miàn méi tǐ print media 平面曲线 píng miàn qū xiàn plane curve 平面设计 píng miàn shè jì graphic design 超平面 chāo píng miàn hyperplane (math.) 切平面 qiē píng miàn tangent plane