“集合运算”的概念、定义、翻译、参考文献-科学参考

单词	集合运算
释义	集合运算 Encyclopedia 理学集合论释 set operation集合运算实体造型系统中非常重要的模块，也是一种非常有效的构造形体的方法。 Mathematics operation of sets集合运算 operation with sets集合运算
随便看	time-space frequency analysis time space multi scale time-space structure time-spatial system time splitting time-splitting method time-splitting scheme timestamp timestamp examination timestamp investigation timestamp ordering time standard time star time step time-stepping method time stepping scheme time switch technology time synchronism time synchronization time system timetable problem timetables of sunrise，sunset，moonrise and moonset Tim Etchells time-temperature equivalence principle time temperature equivalent principle

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。