So let's see if we can come up with measures that will allow us to verify their declaration.
因此，看看我们是不是能够找到办法，允许我们对他们的声明予以核实。
2
Template filters allow you to substitute that variable declaration with an actual value that you establish at runtime.
模板过滤器允许您用在运行时建立的实际的值代替变量声明。
3
XML schema 1.1 introduces a new mechanism called type alternatives that allow the schema author to specify type substitutions on an element declaration.
XML Schema 1.1引入了一种称为类型替换(type alternatives)的新机制，允许模式作者在元素声明中指定类型替换。