根据导集的性质以及闭包运算的定义，得到导集运算的定义。
The definition of derived set calculation can be obtained according to the closure of set and the characteristics of derived set.
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.
又类似于从闭包运算出发建立拓扑空间，从而得到了从导集运算出发建立的拓扑空间。
Similar to the building of topological Spaces through the calculation of a closure of set, the topological Spaces can also be built through the derived set calculation.
二元关系的闭包运算在网络、语法分析以及开关电路中的故障检测和诊断等领域有着重要的作用。
Closure operation of binary relation plays an important role in network, parsing and detection and diagnosis of malfunction in switch circuit.
二元关系的闭包运算在网络、语法分析以及开关电路中的故障检测和诊断等领域有着重要的作用。
Closure operation of binary relation plays an important role in network, parsing and detection and diagnosis of malfunction in switch circuit.
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