Several sieves are applied during the course of modeling of disassembly AND/OR graph, and the estimate of sieving rate is the precondition of reasonable sieving sequence.

• 摘要拆卸与或图的拆卸模型中的一种，它的建模过程需要利用多重筛子进行筛选，筛选率的估计是合理安排筛选顺序的前提。