“query optimization”的概念、定义、翻译、参考文献-科学参考

单词	query optimization
释义	query optimization Encyclopedia 理学数据库系统释 query optimization查询优化查询优化旨在通过选择有效策略，对给定的关系表达式求值，使得查询代价最小。 Computer 数据库数据库管理系统及其实现技术释文 query optimization查询优化
随便看	cinema in Brazil cinema in Cameroon cinema in Cote d’Ivoire cinema in Ghana cinema in Guinea cinema in Ireland cinema in Kwait cinema in Mozambique cinema in New Zealand cinema in Niger cinema in Nigeria cinema in Palestine cinema in Peru cinema in Portugal cinema in Senegal cinema in Tunisia cinema line system Cinema notebooks Cinema Novo Cinema of Moral Concern CinemaScope cinematic language cinematography Cinematography for Directors：A Guide for Creative Collaboration cinema total

科学参考收录了854744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。