固定搭配

at which point

at which point 用于引导定于从句，其意为”就在这时“ ”就在那时“，在许多情况下相当于 and at that (this) moment。

在何处遇到 Spring Framework Documentation 的1.15.2中有一句

The blockedListNotifier bean is registered as an ApplicationListener and receives the BlockedListEvent, at which point it can notify appropriate parties.

理解翻译为：

Bean blockedListNotifier被注册为一个应用监听器并且接收BlockedListEvent，就在这时blockedListNotifier能通知适当的事件