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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。
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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。
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