“ordinary letter”的概念、定义、翻译、参考文献-科学参考

单词	ordinary letter
释义	ordinary letter 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	steam turbine for feed-water pump steam turbine governing system steam turbine nozzles steam turbine overspeed steam turbine performance test steam turbine power steam turbine protection system steam turbine rotor steam turbine seal steam turbine shaft seal steam turbine sliding key system steam turbine speed governor steam turbine stage steam turbine thermal power system steam turbine water impact steam turbine wheel steam turbogenerator failure steam-water separation，vapor-liquid separation steam-water separator Steange Phenomena Witnessed within Twenty Years stearic acid stearin stearin; tristearin stearyl alcohol steatite

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。