Most computer programs introduce or delete the dependent variables in a stepwise manner . 大部分计算机程序均以逐级计算方式来输入或删除某些应变量。
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This model evaluates security factors from bottom to top and gives the intuitionistic security situation from local to global 在服务层通过对资产、威胁和漏洞各因子的量化计算后得出各自的风险值,然后利用模糊评价方法逐级计算各层风险指数。