Use a synchronous protocol with a request-response interaction pattern, and define faults that are understandable by the end user.
使用采用请求-响应交互模式的同步协议，并定义最终用户可理解的错误。
Synchronous protocol and asynchronous protocol are in common use in digital communication.
数字通信中，常用的通信协议有同步协议和异步协议。
Compares with the fixed cyclical time synchronization algorithm, this algorithm can reduce the expenses of synchronous protocol.
与固定周期的时间同步算法相比，该算法能够减少同步协议的开销。
Compares with the fixed cyclical time synchronization algorithm, this algorithm can reduce the expenses of synchronous protocol.
与固定周期的时间同步算法相比，该算法能够减少同步协议的开销。
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