Location (room) of service department: opening hours: week: 8: 00-21:30, Monday to Sunday: 2: 00-21:30, Monday to Sunday: 3: 38 7: 30 Monday to Friday, the fourth lending room (10 1 room (106) 8: 00-12: 0017: 30 Monday to. 8: 00-2 1: 30 Monday to Sunday natural science sample reading room (207) 8: 00-2 1: 30 Monday to Sunday retrieval course teaching and research room 306 (2) office study room (40 1) 8: 00-265438+.