
Article
無線電小常識 - A few pieces of common knowledge about radio
Subject matters: 新知 - new knowledge,
Language level: Baihua
Keywords: general knowledge, suggestion,
Article
簡易電池實驗法 - An easy experiment of battery
Subject matters: 新知 - new knowledge, 文章 - essay,
Language level: Baihua
Keywords: general knowledge, invention,
Image
[No caption] -
Subject matters: Ornament,
Medium: Line drawing