“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	clearing heat at qi level clearing heat for detumescence clearing heat for resolving macula clearing method clearing of fractions clearing summer heat clearing system clearing the mind and smelling scenes clearing ying heat and cooling blood clearness Clearness between Heaven and Earth clear request packet cleartext cleartext message space clear to send clear-to-send circuit clear to send, CTS clear up a case Clearwater Lake crater clearwing moths cleavability cleavage cleavage brittleness cleavage domain cleavage plane

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。