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 | 龙洞 | |
| 原料 | 石灰岩 | |
| 外文名 | natural cave | |
| 形成 | 被含有碳酸气的水溶解 | |
| 性质 | 天然的山洞 | |
| 读音 | lóng dòng |
| 标签 | 中国其他行政区划 |
| 标签 | 地点 |
| 标签 | 词语 |