Each function in a controller represents a destination or route.

控制器中的每个函数表示一个目的地或路线。

youdao

I prefer to use a controller, because I can use it to fire the model logic, then do some validation processing, and then route the user to an error-handling or result page as appropriate.

我更喜欢使用控制器，因为我可以使用它来触发模型逻辑，然后进行某种验证处理，接着将用户路由到一个相应的错误处理或结果页。

youdao

Here, you're creating a home controller so that your route will activate properly.

在这里，您正在创建主控制器以便正确激活您的路径。

youdao

And if any other flights are in the way of the requested new route, they get highlighted on the controller's screen in red.

WSJ: How New Air-Traffic Control Systems Operate Over Oceans

It does not mean leaving pilots completely free to steer their own course like car drivers, but it does transfer more responsibility for plotting a route and following it to the pilot, with the ground controller keeping an eye on things.

ECONOMIST: Clearing the skies | The