他与WalterScheidel合作，Walter Scheidel是斯坦福的一个古典学者与历史学家。他们发明了一个人口增长模型，这个模型基于钱币藏匿的数据，这一工作已进行多年。
He teamed up with Walter Scheidel, a Stanford classicist and historian, to create a model of population growth and decline based on coin-hoard data gathered over the years.
中国的钱币不仅历史悠久而且种类繁多，形成了独具一格的钱币文化。
China's coin has a long history and variety, forming a unique style of money culture.
古钱币的价值不仅记载了中国文化的历史，也反映了中国文字的演变过程。
Calligraphy recordeds the development of Chinese history, and embodies the value of their own.
钱币是历史的一面镜子。
在圜形方孔的钱币上注明文字，标示其价值和通行的年代区域，是历史的必然选择。
Won the first to use state money - is the era of the Warring States, Qin Yan and ultimately from the Qin Dynasty unified the country, won the money as a unified text vector.
在圜形方孔的钱币上注明文字，标示其价值和通行的年代区域，是历史的必然选择。
Won the first to use state money - is the era of the Warring States, Qin Yan and ultimately from the Qin Dynasty unified the country, won the money as a unified text vector.
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