这被称为"显示性偏好"，这在"默契网"的运算规则过程中是必需的要素。"
This is called "revealed preference, " and it is the essential element in Match’s algorithmic process.
另一方面，给出了(h (X)，h)中收敛网的极限通过并、交及闭包运算的表示。
On the other hand, a representation for limit of convergent net in (h (X), h) is given by means of operations of union, intersection and closure.
使用矩阵运算代替对称分量法的传统序网故障变换，以实现不对称短路故障计算，并给出常见故障对应的参数矩阵。
Calculation formulas are proposed with matrices calculation to deal with unsymmetrical faults and parameter matrices for various faults are listed.
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