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 | 象牙塔 | |
| 优点 | 建造速度极快 | |
| 作用 | 在目标区域建立一个瞭望塔 | |
| 出处 | 魔兽争霸游戏 |