two-dimensional concatenation

例句：

1. 1.The two-dimensional concatenation of the data sets is a critical step in the analysis process.
   数据集合的二维拼接是分析过程的一个关键步骤。
2. 2.In this study, we used two-dimensional concatenation to analyze the relationship between variables.
   在本研究中，我们使用二维拼接来分析变量之间的关系。
3. 3. The researchers found that two-dimensional concatenation could improve the accuracy of their predictions.
   研究人员发现，二维拼接可以提高他们预测的准确性。