“售后与维修服务”的概念、定义、翻译、参考文献-科学参考

单词	售后与维修服务
释义	售后与维修服务 Encyclopedia 理学生产性服务释 after-sales and maintenance services售后与维修服务在商品出售以后所提供的各种服务活动和维修活动。
随便看	transition town movement transition width transition with prohibitions transition with taboo states transition zone transitive transitive action transitive binary relation transitive class transitive closure transitive design transitive digraph transitive embedding theorem transitive extension transitive functional dependency transitive graph transitive group transitive group action transitive group of motions transitive G-set transitive law transitive measure-preserving transformation transitive monomial group transitiveness transitive operation

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。