environ. | library service The duties of an establishment, or a public institution, charged with the care and organizing of a collection of printed and other materials, and the duty of interpreting such materials to meet the informational, cultural, educational, recreational or research needs of its clients | 图书馆服务 (一种大型机构或社会公共机构的职责,承担收集印刷出版物和其它材料的责任,以及了解这样的材料并满足客户在信息、文化、教育、生产及研究方面的需求的责任。) |