Most object-oriented languages have constructs to constrain the visibility (or scope) of type and type-member declarations.
大多数面向对象语言都有控制类型或者类型成员可见性（作用域）声明的结构。
To exactly duplicate the effect of the DTD declarations in XML Schema, the elements Title and Author must have a global scope, as in Listing 9.
为了在XMLSchema中实现与DTD声明完全相同的效果，元素Title和Author必须是全局范围的，如清单9中所示。
Use the NSStack class to track the scope of XML namespace declarations.
使用nsstack类跟踪XML名称空间声明的作用域。
NsStack: a data structure that implements a stack of namespace declarations that are currently in scope.
实现作用域内当前名称空间声明堆栈的数据结构。
Declarations of variables and functions at file scope are external by default.
默认情况下，在文件域中声明变量和函数是外部的。
Article 9 foreign exchange administrations shall determine the scope of verification of the electronic data of foreign-related revenue declarations.
第九条外汇局应当按照以下步骤确定涉外收支申报电子数据的核查范围。
Article 9 foreign exchange administrations shall determine the scope of verification of the electronic data of foreign-related revenue declarations.
第九条外汇局应当按照以下步骤确定涉外收支申报电子数据的核查范围。
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