求翻译：这个名字来源于西班牙语中，意思为小的岩石山。声称自己是一个主权独立的民族国家，因此，它采取了在结构上类似于一个主权国家的政府制度是什么意思？

The name comes from Spain in the language, meant as a small Rock Hill. Claimed to be a sovereign independent nation States, so it adopted a similar in structure to a sovereign State of the system of Government