当然，我们可以完全不使用显式的范围，只要能确保没有用不适当的类型来实例化类型参数。

Of course, we could simply leave off the explicit bound and just make sure that we never instantiate the type parameter with an inappropriate type.

youdao

XSLT v2的新特性之一就是为您的变量和参数提供显式数据类型的能力。

One new feature of XSLT v2 is the ability to provide an explicit data type for your variables and parameters.

youdao

一旦声明了类型，就可以将该类型显式的作为第一个参数来声明函数。

Once a type has been declared, functions can be declared which take that type as an implicit first parameter.

youdao