The damage diagnosis method based on vibration testing can be further classified as a direct system identification method, a damage index method and a finite element model modification method.
其中基于振动测试的损伤诊断法可进一步分为直接的系统识别方法、损伤指标法和有限元模型修正法。
And it emphasizes the executive scheme of the file library's structure, the index arrangement, the data sorting and protecting, the code making and the file library's modification.
并着重对该系统文件库的结构、索引的安排、码的编制，数据的检索和保护及文件库的修改等实施方案进行了论述。
The P16 gene modification and increase of PCNA index were related to the increase of malignant grade of brain glioma significantly (P<0 05).
P16基因改变和PCNA指数随脑胶质瘤恶性程度级别增高呈上升趋势（P <0 0 5 ）。
The effect of the surface modification of barite power was characterized by activity index and FTIR. The activity index indicated that modified barite power has a better hydrophobicity.
经活化指数测定，改性后的重晶石矿物表面的疏水性得到了明显改善；
The effect of the surface modification of barite power was characterized by activity index and FTIR. The activity index indicated that modified barite power has a better hydrophobicity.
经活化指数测定，改性后的重晶石矿物表面的疏水性得到了明显改善；
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