“图书销售周期”的概念、定义、翻译、参考文献-科学参考

单词	图书销售周期
释义	图书销售周期 Encyclopedia 文学〔发行业务〕释 book sales cycle图书销售周期图书从进入市场开始，直到最终退出市场为止所经历的生命循环过程。
随便看	principal function principal function classes principal functor principal fundamental solution principal G bundle principal G-bundle principal genus principal G-object principal graduate principal graph principal group principal groupoid principal homogeneous G-set principal homogeneous space principal homomorphism principal horizontal line of photograph principal ideal principal ideal domain principal ideal ring principal ideal theorem principal idele principal idempotent principal idempotent element principal identity principal indecomposable module

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。