By the B-cut sets and the probabilities of the nodes of Binary Decision Diagrams (BDD), a new quantitative analysis algorithm of coherent fault tree based on BDD is presented in this paper.
利用二元决策图(BDD)中的B—割集和节点概率，提出了基于BDD的关联故障树定量分析新算法。
2
B: I'd like a hair cut, please.
B：麻烦你，我想剪头发。
3
This month Moody’s cut its rating from B1 to B3 with a negative outlook, the second cut in five months, and this week Standard &Poor’s reduced it from BB- to B+.