The validations and comparisons show that this model provides fast computation speed, high accuracy, good flexibility to variable time steps and has no numerical unstability.

比较与验证的结果表明这种模型计算速度快、精度高、灵活性好、数值稳定。

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In order to disassembly parts from used products, usually many steps are needed, and disassembling time in each step is stochastic variable.

对废旧产品中的零件进行拆卸通常需要多个步骤才能完成，而每个步骤所需要的拆卸时间都是随机变化的。

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