“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	electric current electric current focused logging device electric current helicity electric current sensor electric current strength electric curtain electric curtain of standing wave electric curtain of travelling wave electric death electric deflection electric dehydration electric dehydrator electric demand forecasting electric desalting wastewater electric detonating valve electric detonator electric dipole electric [dipole] moment electric dipole moment electric dipole moment of molecules electric dipole moment of particles electric dipole radiation electric dipole transition electric discharge machining technology electric displacement

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。