This allows you to add a listener on two sets of MBeans (with two addNotificationListenerExtended calls) and remove it from only one set.

这样就允许您将一个侦听器同时添加到两个 MBean 集合（用两次 addNotificationListenerExtended 调用），并且只从其中的一个集合中除去该侦听器。

youdao

Publication points are used not only for applications to add and remove messages on topics, but also to propagate messages from one messaging engine to the others in the bus.

发布点不仅供应用程序用于添加和删除与主题有关的消息，还可用于将来自一个消息传递引擎的消息传播到总线中的其他消息传递引擎上。

youdao

In order to make it concurrent, I tried to remove join from each thread, but then it doesn't download chunks in order and also download only from one server, not from both.

为了使它并发，我试图从每个线程删除连接，但是它不下载还块，下载只从一台服务器，不从。

youdao

Surgery isn't usually considered effective because it will remove cancer cells only from one area, but the cancer is more likely located in other places.

CNN: Edwards: Cancer 'no longer curable'