Article
無綫電新出品 - A new product of radio

Column title: 科學常識 - General scientific knowledge
Subject matters: 新知 - new knowledge,
Language level: Baihua

Keywords: radiocommunication, science,

---

Article
科學常識 - Common knowledge in science

Column title: 科學常識 - General scientific knowledge
Subject matters: 新知 - new knowledge,
Language level: Baihua

Keywords: science, general knowledge,

---

Image
輕巧聽筒 - Handy earphones

Subject matters: Still life,
Function: Related to Article/Ad

Keywords: everyday life, electric equipment, invention,