An approach to formation of IF equivalent matrixes by finding the transitive closure is presented with the proof of theorems of transitive closure and resembling matrix.
提出一种利用求传递闭包来构造直觉模糊等价矩阵的方法，证明了直觉模糊相似矩阵定理及传递闭包定理。
2
Nonlinear parameter estimation approach can also be used to converse the formation permeability.
可以采用非线性参数估计的方法反演地层的渗透率；
3
Objective:To approach to main correlative factors of child lingua geographica formation and the immunological mechanism.