A blockchain replicates data over nodes using State Machine Replication (SMR).
State machine replication is a technique for implementing a fault-tolerant service by replicating servers
区块链使用状态机复制（SMR）在节点上复制数据。
状态机复制是一种通过复制服务器来实现容错服务的技术
In the state machine replication model replicas agree on an ordering of incoming requests and then execute the requests in the same order.
State machine replication approaches have been used in different synchronous and asynchronous networks to tolerate crash, malicious, or both failures.
在状态机复制模型中，副本会同意传入请求的顺序，然后以相同顺序执行请求。
状态机复制方法已在不同的同步和异步网络中使用，以容忍崩溃，恶意或两者兼而有之。
