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 on microfiche 缩微胶片选择传播

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 system [图情] 定题情报提供系统

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