The CORBA specification states that this file must extend IDLEntity and have the same name as the IDL interface name.

CORBA规范指出这个文件必须扩展IDLEntity，并且与IDL接口同名。

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For example, suppose we have an unsigned short returning from an IDL interface. The range of this type will be from 0 to 65535.

例如，假设有一个从IDL接口返回的unsigned short类型值，这一类型的取值范围是0到65535。

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An IDL interface provides the information needed to develop clients that use the interface's operations and servers that implement the interface.

IDL接口提供了开发使用接口操作的Client和实现接口的Server所需要的信息。

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