Bo Xu, Yong Xu, Jiaqing Liang, Chenhao Xie, Bin Liang, Wanyun Cui, and Yanghua Xiao. CN-DBpedia: A Never-Ending Chinese Knowledge Extraction System. In International Conference on Industrial, Engineering and Other Applications of Applied Intelligent Systems, pp. 428-438. Springer, Cham, 2017.
| 中文名 | 自由铸造 | |
| 内涵 | 铸币价值与所含金属价值保持一致 | |
| 时间 | 1880年 | |
| 物价水平 | 下降了23% |
| 标签 | 经济 |