_: name 标识维护节点标识，即使 RDF 模型中没有任何标识与它们对应。
The _:name identifiers maintain the identity of the nodes, even though they don't have any corresponding identifiers in the RDF model.
创建一个修改后的部署管理器启动脚本，用于使用备份节点维护的配置。
Creates a modified deployment manager startup script for use with the configuration maintained with the backup node.
此处的关键概念在于，各节点的配置和维护应该要么类似，要么将差异降至最低。
The key concept here is that the configuration and maintenance of each node should be either identical or very minimally different.
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