摘要
介绍了互联网搜索引擎的分类和发展 ,指出了专业搜索引擎存在的可能性和必要性。
Development and classification of search engine is investigated. The possibility and essentiality of special search engine are shown Several methods to do business with web are introduced.
出处
《稀有金属与硬质合金》
CAS
CSCD
2000年第4期65-66,共2页
Rare Metals and Cemented Carbides
