This is the 17798th most frequent Russian word.
уникальные
"Уникальные" means "unique."
In this sentence, 'уникальными' is used as an adjectival descriptor of the plural noun 'изложениями', indicating that the explanations are special or one-of-a-kind.
Эти книги обладают уникальными изложениями материала.
These books have unique explanations of the material.
Here, 'уникальные' refers to the distinct and exceptional qualities of the natural features at this location.
У этого места уникальные природные особенности.
This place has unique natural features.
In this context, 'уникальными' modifies 'деталями', describing the details of the design as being distinctive and exclusive.