“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	thermo-magnetic-mechanical treatment thermomagnetic treatment thermomagnetism thermomagnetization thermomagnetometry thermomass thermomechanical analysis thermomechanical analyzer thermo-mechanical coupling thermo mechanical curve thermo-mechanical curve thermomechanical effect thermomechanical effect of He II thermomechanical effect of He Ⅱ thermomechanical fatigue thermo-mechanical treatment thermomechanics thermometal thermometamorphism thermometer thermometer of paramagnetic salts thermometer probe thermometrical rate of cooling thermometric parameter thermometric property

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。