 |
| |||
| data service | |||
| reference service The provision of aid by library staff trained to interpret library materials and library organizational structures to meet the informational, educational, cultural, recreational or research needs of the library's clients (为满足图书馆客户的信息、教育、文化、娱乐或研究的需求，由受过训练并能解释图书馆资源和图书馆的组织结构的图书管理人员所提供的帮助。) | |||
| 资料服务: 28 phrases in 14 subjects |
| Automobiles | 1 |
| Aviation | 4 |
| Business | 3 |
| Earth sciences | 4 |
| Ecology | 1 |
| Electronics | 2 |
| Environment | 2 |
| Exhibitions | 1 |
| Finances | 1 |
| General | 3 |
| Securities | 1 |
| Space | 1 |
| Technology | 3 |
| United Nations | 1 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips