“postcard”的概念、定义、翻译、参考文献-科学参考

单词	postcard
释义	postcard Encyclopedia 工学邮件释 postcard明信片不需缄封的具有通信性质的卡片式信息载体。是信件的一个类别，其寄递是邮政企业的专营业务。
随便看	hydrometallurgy of Rare earth hydro-meteorological disaster hydrometeorological disaster hydrometeorological elements hydrometeorology hydrometer hydrometric boat hydrometric bridge hydrometric cableway hydrometric network hydrometric station hydrometry hydromica hydromorphic soil hydro-motor hydron hydron and hydride hydroncus hydronephrosis hydronic hydronic balancing in water system hydronic power unit hydronics hydronitric acid hydronium ion

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。