noun, noun which may take the genitive case particle 'no'
closed stack system
Library system where patrons request materials from staff instead of browsing shelves directly. Often contrasted with 開架式 (open stack system).
This library uses a closed stack system, so please request books at the counter when you want to borrow them.
Materials in the closed stacks are retrieved by staff.
Compound of 閉 (へい, 'closed'), 架 (か, 'shelf'), and 式 (しき, 'system'). The term is a straightforward description of a library system where stacks are closed to the public.