符号有向图 meaning in English

signed digraph

In chapter 4 , fault isolation based on statistical methods is discussed . firstly , the fault isolation ability of multi - block principal component analysis is tested on the tennessee eastman process . then principal component analysis and signed directed graph are combined , and the method is applied to a continuous stirred tank reactor
第四章探讨了多元统计法在故障分离中的应用：首先以田纳西过程为实例检验分块主元法的故障分离能力，然后把统计法故障诊断与符号有向图法结合，并把这一方法应用到一个连续搅拌的化学反应釜中。