成就声明：“快速掌握橡胶成形业务，保持无瑕疵安全纪录并且平均超额完成生产目标的15%。”
Results statement: Quickly mastered rubber molding operations, maintained flawless safety record and exceeded productivity targets by an average of 15%.
对于同步复制，目标节点不接收到此写入操作，生产节点上的写入操作就无法完成，这样可以保证两边的复制一致。
With synchronous replication, the write on the production node does not complete until it has been received on the target node, so you are guaranteed identical copies on each side.
对于异步复制，顺序是一样的，但是无需等待目标节点确认已经收到写入操作，就可以完成生产节点上的写入操作。
With asynchronous replication, order is preserved, but the write is allowed to complete without waiting for an acknowledgement from the target node that the write has been received there.
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