“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	The World’s Desire The Writers The Writers' Movement '50 The Writer The battle front Visiting missin The Write Your Own History Project the writing remains of San Guo Zhi by people from Jin Dynasty The Xiao and Xiang Rivers The Yacoubian Building the Yanan areas The Yan'an Love the Yangtse River estuary fishing ground The Yangtze River Fishery Supervision and Management Office，the Ministry of Agriculture the Yan’an Forum on Literature and Art The Yearbook of Chinese Education in the World The Year of Grace The Year of Living Dangerously The Year of the Soul The yellow and the white the Yellow Emperor’s Mausoleum The Yellow River Monthly The Yellow River Publishing & Media Group Co.,Ltd. The Yellow Rose the Yellow Sea fishing ground The Yellow Storm The Yellow Wallpaper

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。