Archaeologists frequently find clay tablets in batches.The batches,some of which contain thousands of tablets,consist for the most part of documents of the types just mentioned:bills,deliveries,receipts,inventories,loans,marriage contracts,divorce settlements,court judgments,and so on.These records of factual matters were kept in storage to be available for reference—they were,in effect,files,or,to use the term preferred by specialists in the ancient Near East,archives.Now and then these files include pieces of writing that are of a distinctly different order,writings that do not merely record some matter of fact but involve creative intellectual activity.They range from simple textbook material to literature and they make an appearance very early,even from the third millennium B.C.E.

请问老师，这里的to use term怎么理解？