M_M_1排队 根据排队论的知识我们知道，排队系统的分类是根据该系统顾客到达模式、服务模式、服务员数量以及服务规则等因素决定的。-M_M_1 queuing We know that the knowledge of the queuing theory classification of queuing systems Under the system, customer arrival patterns, service mode, attendant number, and service rules and other factors.