kehitettyillä
Kehitettyillä is a Finnish word. It is the adessive plural form of the past passive participle of the verb "kehittää," which means to develop or to improve. Therefore, "kehitettyillä" translates to "with developed" or "by developed" when referring to multiple entities. This grammatical form indicates that something has been acted upon or possessed by things that have been developed.
In practical usage, "kehitettyillä" would be used in sentences where a plural subject or object is described