某分布式部署的声纳系统共有n个独立节点构成。各节点内部均是物理同构的。各节点必须保持严格的时钟信号同步才能有效协同工作，使系统发挥作用。所有节点经由时钟信号总线连接，由其中一个节点担当主节点，它的时钟电路工作于主模式，向总线输出时钟信号；其余节点均应担当从节点，节点内部时钟电路工作于从模式，仅从总线获取信号，不向总线输出信号。该程序模拟了系统的可靠性和可用性-Distributed deployment of a sonar system there are n independent nodes. Internal nodes are physically homogeneous. Each node must maintain strict clock signal synchronized to effectively work together to make the system work. All nodes connected via a bus clock signal from one of the nodes act as the master node, its clock circuit operates in master mode, the bus output clock signal　remaining nodes should be served from the node, the node internal clock circuit operates in slave mode, just bus to get a signal, not to the bus output signal. The program simulates the reliability and availability of the system