The evolutional law of damage value as a function of stress was obtained.

分别得出损伤变量随应力和应变而变化的演变规律。

The theory of regional structure of urban agglomerations is a basic theory which researches spatial characteristic of urban agglomerations and evolutional law.

城市群地域结构理论是研究城市群空间特征及其演化规律的基本理论。