请输入您要查询的字词:
单词
philately commemorative postmark
释义
philately commemorative postmark
Encyclopedia
工学
集邮品
释
philately commemorative postmark
集邮纪念戳
为纪念与集邮目的而刻制使用的专门戳记。包含两类性质完全不同的戳与章:一类是纪念邮戳,一类是纪念印章。
随便看
subdecomposition
subdegree
subderivative
subdermal implant
sub-dermal implants
subdeterminant
subdiagonal
subdiagonal element
subdichromatism
subdifferentiability
subdifferentiable function
subdifferential
subdifferential calculus
subdifferential mapping
subdifferential operator
subdifferential stability
sub diffusion coefficient
sub-diffusion coefficient
sub diffusion process
sub-diffusion process
sub-diffusive process
subdirect
subdirect decomposition
subdirect irreducibility
subdirectly irreducible
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。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2025/3/18 16:49:15