You can use the security demand call declaratively or imperatively to specify the permissions that direct or indirect callers must have to access your library. 可以声明方式或强制方式使用安全要求调用来指定直接或间接调用方访问您的库时必须拥有的权限。
The application code that is invoked through that extensibility point is attempting to call back into managed code. 通过该扩展性点调用的应用程序代码正在尝试回调入托管代码。
To graph the numbers, you'll call in a charting applet that will let you print out your report nice and pretty, all without leaving your browser. 为用图形表示这些数字，你可以调入作图表的小应用程序，让你漂漂亮亮地打印出报表来，而所有这些不必离开浏览器。
