Read Edit View history 投影中心 tóuyǐngzhōngxīn projection center Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 投影中心 · tóuyǐngzhōngxīn · projection center 2026/03/04 投影中心 tóuyǐngzhōngxīn projection center center of projection 投影中心是连接物体点与对应图像点的直线交点。 created sense Mar 4, 2026, 02:25 AM