To define the part cluster reference patterns is the key in part classification system.
确定零件组的参考模式是零件分类系统的关键问题。
Besides, the material type is a key reference factor in selecting electronic resources.
资料类型是选择电子资源的重要参考因素。
Additionally, find ways to display key information for easy reference.
此外，想办法展示关键信息，以便于查询。
Information service is the key in the engagement of modern university library, a link to bridge reference and information.
信息咨询服务是现代高校图书馆工作的核心，是联系文献与信息工作者的桥梁与纽带。
Information service is the key in the engagement of modern university library, a link to bridge reference and information.
信息咨询服务是现代高校图书馆工作的核心，是联系文献与信息工作者的桥梁与纽带。
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