An agent which carries out some task for a user and, in doing so, visits several computers in a network. An example might be an agent that looks for the cheapest copy of a particular domestic product in Web sites.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。