“letters express item”的概念、定义、翻译、参考文献-科学参考

单词	letters express item
释义	letters express item Encyclopedia 工学快件释 letters express item信件类快件以封套形式缄封的，内件是按照名址递送给特定个人或者单位的信息载体的快件。不包括书籍、报纸、刊物等。
随便看	fat and oil nutrition fat body fat cell fat chemical modification fat client fat coal fat coal; rich coal fat digestion fate Fated to Love You Fatele Fatelessness fat embolism fat embolism syndrome Faten Hamama Fate of a Man fate of pollutant fat finger problem fat fractal fat greenling Father father Father and Daughtor Father and Son father and son consecutive names

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。