在网络环境下,信息资源的内容发生了巨大的变化。传统的信息提供与获取方式已彻底改变,分散于不同地理位置的信息资源以数字方式将文献中具有某一共同特征或某一知识内容的情报资料集中存贮,并根据不同情报用户的需求建立各种类型的机读数据库,为情报用户提供极大的方便。通过相应技术条 In the network environment, the content of information resources has undergone tremendous changes. Traditional information provision and acquisition methods have been completely changed. Information resources scattered in different geographical locations digitally store information materials having certain common features or certain knowledge contents in the literature in a centralized manner, and establish them according to the needs of different intelligence users Various types of machine-readable databases provide great convenience to intelligence users. Through the corresponding technical article