“中国近代邮政起源档案”的概念、定义、翻译、参考文献-科学参考

单词	中国近代邮政起源档案
释义	中国近代邮政起源档案 Encyclopedia 管理学中国档案文献遗产名录释 archives of modern Chinese postal origin中国近代邮政起源档案中国清代邮政档案。
随便看	graded index lens, GRIN graded index media graded-index media =graded index 陡度折射率 graded junction graded lattice graded Lie algebra graded manifold graded medical treatment graded module graded morphism graded object graded pn junction graded-polarizable graded projective dimension graded protection of wild plants graded [refractive] index graded refractive index graded ring graded R nodule graded R-nodule graded sheaf graded space graded submodule Graded Supplementary Readings for Primary School Students

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。