When you install or update software components, the management system determines which components are already on the device, and then installs only the missing components.
在安装或更新软件组件时，管理系统会判断设备上已经安装了哪些组件，然后只安装缺少的组件。
This way, rendering tags will be generated for all or most of the host components on the host page, requiring you to do little or no work to add any missing host components.
这种方法将生成主机页上所有或大多数主机组件的呈现标记，只需要您做一点点工作（或者根本不用再费神），添加所有缺少的主机组件。
What we see missing are more functional components.
我们认为缺失的东西更多的是功能组件。
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