Or perhaps the service broker would encapsulate business logic that varies the selection of service providers based on established service level agreements or business rules.
或者，服务代理可以封装业务逻辑，以根据已建立的服务级别协议或业务规则改变服务提供者的选择。
According to the distribution rules of readers' arrival interval and service time, the mathematical model for simulating library circulation system was established by the Monte Carlo methods.
根据读者到达时间间隔和借还书服务时间的分布规律，利用蒙特卡罗的方法建立了模拟图书馆流通服务系统运行过程的数学模型。
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