Article
科學常識 袖珍留聲機 - Common knowledge in science, a pocket gramophone
Subject matters: 新知 - new knowledge,
Language level: Baihua
Keywords: invention, technology,
Image
[No caption] -
Subject matters: Ornament,
Medium: Line drawing
(上圖) 開啓時之內容 - (the picture above) the contents when one opens it
Subject matters: Illustrative diagram,
Medium: Photograph-Monochrome
Keywords: electric equipment,
(左圖) 關閉時之外觀 - (the picture left) the appearance when one closes it
Subject matters: Illustrative diagram,
Medium: Photograph-Monochrome
Keywords: electric equipment,