The structures in earthquake regions should be designed with the seismic requirement, so the damage condition of structures is associated with the standard it relied on.

地震区的工程结构要进行抗震设计，所以地震发生后结构的破坏情况与抗震标准有密切的关系。

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Meanwhile it measured the material quality and determined the material utilization ratio and strengthening principal. In the light of use requirement, a seismic strengthening plan was given.

确定了主要承重构件的材料性质和在加固改造中可利用的程度及加固原则，结合使用要求提出对原结构的抗震加固方案。

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The DC power is applied to digitized equipment for nobody to work in seismic station. Technic way and requirement to realize and to reach the DC power are also explained.

这种电源适用于数字化设备的无人职守台站，本文也论述了实现的技术思路和达到的技术要求。

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