首先给出未确知数的定义、运算及性质，在此基础上定义未确知事件的可靠度。
First, we introduce the definition, operations and properties of unascertained number. On the basis, we defined the credible degree of unascertained event.
基于水质系统的未确知性，运用未确知理论将瞬时排污情形下河流水质模型参数定义为未确知数。
Based on the unascertained characteristic of river water quality system, the parameters of water quality model are defined as the unascertained Numbers by using unascertained mathematics theory.
在此基础上，分析了未确知有理数滤波的适用范围，指出其应用于多输入单输出的数据处理情况。
On this basis, the application sphere of unascertained rational number filtering is analyzed and it applied to the data-processing conditions of multi-input and single-output.
基于未确知理论，定义了系统不确定性的一个度量尺度——盲数方差。
Based on the uncertainty theory, a measurement scale of uncertainty - blind number variance is defined.
提出未确知有理数用于施工网络计划，介绍未确知有理数概念、运算、未确知期望。
Putting forward using unascertained rational number to construction network, this paper also introduced the conception and operation of unascertained rational number and unascertained expectation.
结合网络等值法，给出了基于未确知有理数的配电系统可靠性评估模型和算法。
By combining unascertained rational number operation with the network-equivalent approach, an algorithm is introduced to calculate the possibility reliability indices of distribution systems.
结合网络等值法，给出了基于未确知有理数的配电系统可靠性评估模型和算法。
By combining unascertained rational number operation with the network-equivalent approach, an algorithm is introduced to calculate the possibility reliability indices of distribution systems.
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