pulse extraction column

例句：

1. 1. The new machine uses a pulse extraction column to analyze the data.
   这台新机器使用脉冲提取柱来分析数据。
2. 2. The scientists used a pulse extraction column to extract the DNA from the sample.
   科学家们使用脉冲提取柱从样本中提取DNA。
3. 3. The researchers developed a new algorithm that could be used in a pulse extraction column.
   研究人员开发了一种新的算法，可以在脉冲提取柱中使用。