投影几何 tóuyǐngjǐhé projective geometry Definitions Defs Origin Strokes Stroke Words Sentences Sents 投影 tóuyǐng verb projection the shadow or image cast onto a surface; a lasting trace or reflection of an event in one's mind; (geometry, cartography) the representation on a plane of any part of the earth's surface or a three-dimensional object几何 幾何 jǐhé geometry geometry; often used as a short form for 几何学 jǐhéxué
