“首日封”的概念、定义、翻译、参考文献-科学参考

单词	首日封
释义	首日封 Encyclopedia 工学集邮品释 first day cover首日封在新邮票发行首日，将该套邮票的全套或单枚贴在特制信封、普通信封或纪念信封的右上角，加盖当日邮政日戳或特制的首日纪念邮戳的信封。
随便看	energy consumption in mobile devices Energy Consumption of Pollutant Treatment energy consumption per unit air volume energy consumption per unit building energy consumption per unit GDP energy consumption per unit of GDP energy consumption scheduling energy content of quanta energy conversion energy crop energy cycle in reefs area energy decomposition analysis energy degradation energy-delay product energy density energy density of electric field energy density of electromagnetic field energy density of radiation energy density of the vacuum energy dependence energy detectivity energy detector energy diagram of molecular orbital energy dispersion spectrometer energy dispersion Xray analysis

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。