NSTL. China National Library of Science and Technology is referred to as NSTL for short. China Science and Technology Library was established on June, 2000 12. Literature service is a major service item of NSTL. The member units of NSTL include the Literature Information Center of China Academy of Sciences, the Engineering Technology Library, the Library of China Academy of Agricultural Sciences and the Library of China Academy of Medical Sciences, and set up an office in China National Science and Technology Library, which is responsible for the organization, coordination and management of scientific and technological literature information resources.