给出了不分明化拓扑空间中半开集和半连续函数的概念，并讨论了它们的某些性质。
We introduce the concepts of semi-open sets and semi-continuous functions, and discuss some of their properties in fuzzifying topology.
采用水平集方法描述结构的拓扑及其变化，使用紧支径向基函数对计算区域的水平集进行插值以得到参数化的水平集方法。
The level set method was adopted to describing the structural topology and its change, and the compactly supported radial basis function was introduced to getting the parametric level set method.
该模型采用二值化水平集方法实现，避免了传统实现方法水平集函数需要重新初始化为符号距离函数，从而导致稳定性差、计算量大、实现复杂等缺点。
The model was implemented by level set method with a binary level set function to reduce the expensive computational cost of re-initialization of the traditional level set function.
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