Synchronous replication copies data operations using distributed transaction management that applies operations to all copies (almost) simultaneously as a single unit of work.
同步复制使用分布式事务处理管理复制数据操作，(几乎)同时的作为工作单点，将操作应用到所有复件。
The model has composed of five parts: replication management, data capturing, synchronization, conflicts detection and solution, data propagation.
模型中定义了复制管理、数据捕获、同步、冲突检测处理、数据传播五个部分。
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