A join point is "a well-defined point in the program flow." 3 There are many types of join points, such as a method call or a method return, which can be either a normal return or a thrown exception.

一个连接点是：一个在程序流程中定义明确的点。3连接点有很多类型，正如一个方法的调用或一个方法的返回，都可以是一个正常的返回或者抛出一个异常。

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Listing 3 shows an example of a USER Not Authenticated or FAKED USER error that occurs if you run a program to access a guard point after logging in via a non-authorized login method.

清单3显示了一个USER Not Authenticated或FAKED USER错误的例子，当您通过不支持的登录方法登录并运行访问保护点的程序之后，就会出现此类错误。

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This paper introduces a method of curve setting out in route construction, in which 2 or 3 control points are placed at the intersected point of the curve.

本文论述了在路线工程曲线段“交点”附近设立2 ~ 3个能相互通视的控制点对曲线段进行较高精度放样的新方法。

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