This paper gives a comparison between them and proposes the repetitious points incremental snapshots based on the same snapshot volume combining with the above two technologies.
论文在比较两者特点的基础上，将两者有机地结合起来，提出了基于同一快照卷的多时间点增量快照。
The first time an object is sent to a client, it must include a full state snapshot, but subsequent updates can save on bandwidth by including only incremental changes.
如果是第一次发送给客户端，必须要包含所有状态的数据，后续的更新只需要包含增量的修改，以节省带宽。
When unique changes are made to the production environment, the software creates and stores a snapshot of incremental changes at the block level.
当独特的更改生产环境，该软件创建和存储在块级增量变化的真实写照。
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