It works well for readily available sites like search engines, online bookstores, and even many library catalogs, but secured e-journal databases need federated search to be installed.
它在像搜索引擎，在线书店甚至图书馆目录等搜索中工作良好，但是那些有保护的电子期刊数据库则需要安装联邦检索。
Library journal contents report services, which includes Table of contents Alerts (TOC Alerts) and Search Alerts, are realized by setting-up databases alerting service.
图书馆期刊目次报导通过定制数据库提醒服务来实现。期刊提醒包括目次提醒和检索策略提醒。
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