“Penny Black Stamp”的概念、定义、翻译、参考文献-科学参考

单词	Penny Black Stamp
释义	Penny Black Stamp Encyclopedia 工学邮资凭证释 Penny Black Stamp黑便士 1840年英国发行的世界上第一枚邮票。5月1日发售，5月6日正式使用。面值为1便士，用黑色油墨印制。
随便看	strengthening，retrofitting and transformation for civil engineering strengthen the central force and weaken the local one strengthen the spleen with roasted and aromatic flavour strength function strength of association strength of a test strength of blade strength of bladed disk strength of boiler pressurized components strength of cement and concrete Strength of character strength of character strength of collocability strength of composites strength of coupling strength of electric field strength of frictional sliding of rocks strength of illumination strength of laminate strength of polymer strength of polymers strength of resonance strength of rock strength of rock fracture strength of soils

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。