“平常信函”的概念、定义、翻译、参考文献-科学参考

单词	平常信函
释义	平常信函 Encyclopedia 工学信函释 ordinary letter平常信函信函的一种常见形式。邮政企业在收寄时不出具收据，处理时不登记，投递时不要求收件人签收，不接受用户查询。简称平信。
随便看	largest set largest sure result largest topology large submodule Large Synoptic Survey Telescope large systems Large-systems coordinated control method large-tailed han sheep large tank pumping technology large telescope large temperature difference chilled water system large testing system metrology technique large time large time lag process control Large Tomb at Hwangnam-dong large tonnage beam carrying vehicle large transport industry large type book large variation large vein large vestibular aqueduct syndrome large vocabulary speech recognition large volume injections large volume press large volumn injection

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。