选择联机 meaning in English

choose connection

Based on comparison and analysis of database contents embodied in five international online retrieval systems in subject and its hiberarchy , this paper puts forward five suggestions that would help to select the right online retrieval system on database resources
本文在对五大国际联机检索系统收录数据库按学科类别、学科分级分别进行比较分析的基础上,提出了依据收录数据库资源特色来选择联机检索系统的五点建议。