MQTT对于主题空间有一些强制规定，但设计适合您自己应用程序的逻辑信息空间则由您负责。
MQTT enforces few rules about the topic space, and you are responsible for designing a logical information space that makes sense for your application.
当您创建一个复合应用程序来覆盖自己的域的功能时，主要的用户界面元素可能只关注这个域。
When you create a composite application to cover the functionality of your domain, major UI elements may focus solely on your domain.
它们当然是您自己的应用程序环境，所以需要进行定制。
They are of course your application environments, so that implies the need for customization.
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