“book purchase”的概念、定义、翻译、参考文献-科学参考

单词	book purchase
释义	book purchase Encyclopedia 文学〔发行业务〕释 book purchase图书采购个人或单位（图书馆、企业图书室等）在一定的条件下从供应市场（新华书店、出版社等）获取图书产品作为自己的资源，以满足自身需要或保证生产、经营活动正常开展的活动。
随便看	positive semi-trough positive sense positive sense single-stranded RNA virus positive sequence positive series positive side positive sidelight positive sign positive skewness positive solution positive species interaction positive spinor positive staining positive strain energy positive strand positive subspace positive supportive reaction positive (symmetric) operator positive symmetric operator positive system of roots positive term positive term series positive trace positive type positive uniaxial crystal

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。