Image
第四圖,第五圖,第六圖 - Figures four, five, six
Subject matters: Illustrative diagram,
Medium: Line drawing
第七圖,第八圖 - Figures seven and eight
Subject matters: Illustrative diagram,
Medium: Line drawing
Image
第四圖,第五圖,第六圖 - Figures four, five, six
Subject matters: Illustrative diagram,
Medium: Line drawing
Subject matters: Illustrative diagram,
Medium: Line drawing