Second, to speed up the determination of stem criticality and to increase new critical paths as more as possible without adding the computing complexity, several effective methods are presented.

• 第二，对扇出源的临界性确定，在尽量不增加计算复杂性的前提下，以尽可能使电路中有更多、更长的新的临界路径为原则，提出了加速扇出源临界性确定的有效方法。