Modification impact: DB2 will automatically maintain every index you create.

修改影响：DB 2将自动维护您创建的每个索引。

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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。

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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。

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