Forbided customary law come from the feelings of dread; Allowed customary law come from the instinct of imitation.
禁止性的习惯法，源于人的恐惧心理；允许性的习惯法，源于人的模仿本能。
Giving an imitation of traditional plastic theory , a damage surface model on brittle rock about temperature in stress-space is introduced and the evolutionary law is discussed qualitatively.
参照经典塑性力学的屈服面理论，引入了温度作用下应力空间中脆性岩石的损伤面模型，定性地讨论了荷载和温度影响下损伤面时的演化规律。
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