1·After reanalysis, analysts removed all but 14 columns.
经过重新分析，分析员保留了14个字段。
1·Several perturbation methods for mode analysis were briefly summarized in this paper, some of which were widely applied in sensitivity analysis as well as reanalysis.
模态分析的矩阵摄动法在灵敏度分析和重分析中有广泛的应用。