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

sdi selective dissemination of information 定题情报检索

selective dissemination of information online 联机定题情报提供

group selective dissemination of information 成批定题情报服务

automated selective dissemination of information 信息自动选择传输