- 관상감
- 觀象監
Hanja (Korean Hanzi) dictionary. 2013.
관상감
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Cheugugi — (This is mere a translated document of 측우기 on wikipedia. Editor s comment) Cheugugi(Hangul:측우기, Hanja:測雨器)is the world first rain gauge which is invented and utilized by Joseon Dynasty of Korea. It was invented and supplied to each Provincial… … Wikipedia
