The GeoPlanet data, which contains information about millions of placenames in multiple languages, also forms the basis of Placemaker's geographical knowledge.
GeoPlanet的数据包含几百万个地名的多语言信息，构成了Placemaker地理知识系统的基础。
The academic field which has developed to study placenames is called toponymy.
而地名学就是以语言为基本线索，研究地名的科学。
The placenames of the inscriptions on the coin are all in Henan province, so the coins should be the currency of Han state.
锐角布面文的地名都在今河南境内，这类布币当是战国时期韩国的铸币。
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