selective dissemination of microfiche [图情] 缩微平片定题提供
Selective Dissemination of Information SDI 定题服务
SDI-Selective Dissemination of Information 定题服务
Selective Dissemination of Information service 定题跟踪 ; 定题服务
selective dissemination of information 资讯的选择性传播 ; 信息的选择性传播
selective dissemination of documents 文献选择性传播
sdi selective dissemination of information 定题情报检索
group selective dissemination of information 成批定题情报服务
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