In modeling terms, you would most usually expect to see a UML component here; however, such a restriction seems arbitrary, and so the metaclass is noted as class for more flexibility.
在建模的术语里，你可能最经常期望见到的一个UM L组件。然而，这样的一个约束似乎是武断的，所以为了更大的灵活性，元类被指明作为一个类。
In this case, the restriction selects all resources that have an issue property where the value of that property is of class issue.
在这个例子里，约束条件选择所有具有issue特性并且该特性的值属于类issue的资源。
This restriction is lifted in Groovy; you can change the values of variables in a containing scope from within an anonymous inner class.
Groovy则消除了这种限制，在Groovy中，匿名内部类可以修改外部的变量值。
By its subclassing from this restriction, the RelevantResource class is a sort of virtual class that includes a set of all resources that meet the restriction.
通过从这一约束条件划分子类，RelevantResource类成为一种包含一个所有满足该约束条件资源集合的虚拟类。
Besides the distributional requirements, you are free to pursue your own interests. There is no restriction in your choice of subjects other than your major-such a flexibility in class shopping.
除了对课程分配方面的强制规定外，你可以随意选择自己感兴趣的科目，即便是对你专业以外的课程学院也没有任何限制。
There is no restriction to how many Death Knights you can create, and you can create a new character on any realm, as any other class.
对于你能创建多少个死亡骑士并没有什么限制，并且无论你是何种阵营何种职业你都能够创建一个新的人物角色。
Complex type definitions support derivation by extension and restriction, allowing you to define complex type hierarchies in a way that maps nicely to 00 class hierarchies.
复杂类型定义支持通过扩展和限制进行派生，这就允许以一种映射到面向对象类层次结构的方式定义复杂类型层次结构。
In this paper, we consider the best approximation of a matrix under a given linear restriction with some fixed elements. This result can be apply to solving a class matrix inverse eigenvalue problem.
本文研究具有某些固定元素的矩阵在线性约束下的最佳逼近，其结果可以用于解一类矩阵反特征值问题。
In this paper, we consider the best approximation of a matrix under a given linear restriction with some fixed elements. This result can be apply to solving a class matrix inverse eigenvalue problem.
本文研究具有某些固定元素的矩阵在线性约束下的最佳逼近，其结果可以用于解一类矩阵反特征值问题。
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