“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	partial ossicular replacement prosthesis partial parsing partial pivot partial pivoting partial plane partial polarization partial potential partial power on partial predicate partial pressure partial pressure of carbon dioxide measurement instrument partial pressure vacuum gauge partial prestressing ratios partial privatization partial probability partial problem of eigenvalues partial product partial quotient partial radial distribution function partial radial distribution function, partial RDF partial radial distribution function; partial RDF partial radiation conditions partial range partial rank correlation coefficient partial rate factor

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。