“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	generalized Nakayama conjecture generalized network generalized Newton method generalized nilpotent element generalized nilpotent group generalized nilpotent operator generalized norm generalized octagon generalized Ohm law generalized Ohm's law generalized oscillator strength generalized oscillator strength, GOS generalized Padé approximation generalized parameter generalized partial linear regression generalized peak point generalized peak set generalized permutation generalized Petersen graph generalized Peterson graph generalized Pfaff-Birkhoff principle generalized phrase structure grammar generalized phrase structure grammar, GPSG generalized pigeonhole principle generalized Plateau problem

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。