In time and space, the whole process of karst collapse can be divided into two phases: inter collapse and surface collapse in term of the formation of the critical soil hole.
3
我国现行抗震设计规范中给出的反应谱依赖于两个参数,即地震烈度和场地土类别。
The response spectrum given by present design standards depends on two parameters, i. e. earthquake intensity and site classification.