In this paper, a formula of approximate analytic solution of subharmonic resonant overvoltage is established according to the theory of region analysis.
本文以区域分析理论为工具，提出分次谐波共振过电压的一个近似解析公式。
The model of high risk region analysis is built; it divides a city into many same size cells, and every cell is assigned an index to represent hazard degree.
文中建立高危害小区分析模型，设想将城市划分等面积网格，给每个单元网格赋予灾害指数，以确定城市中受灾较为严重的区域，为救灾指挥提供决策信息。
Based on the practical engineering in Yangtai region, analysis is made on the causes of formation of the non-loaded fatigue crack early in asphalt pavement, and given the preventions.
结合扬泰地区工程实例，分析了沥青路面两类早期非荷载疲劳裂缝产生的原因和开展形式，并提出工程防治措施。
Based on the practical engineering in Yangtai region, analysis is made on the causes of formation of the non-loaded fatigue crack early in asphalt pavement, and given the preventions.
结合扬泰地区工程实例，分析了沥青路面两类早期非荷载疲劳裂缝产生的原因和开展形式，并提出工程防治措施。
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