Figure 30 shows that the user librarian, one of the members of the workers group, performed the retrieval task.
图30显示用户librarian(工作人员组的成员之一)执行了检索任务。
用户marco是一个librarian。
The librarian only master the situation information, the Sci-Tech information, the user information and the author information can improve the work quality and service level.
图书馆员只有掌握形势信息、科技信息、用户信息、著者信息和自我信息，才能提高图书馆工作的质量和服务水平。
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