“history of public relations”的概念、定义、翻译、参考文献-科学参考

单词	history of public relations
释义	history of public relations Encyclopedia 文学公关关系史释 history of public relations公共关系史广义的公共关系史指人类公共关系思想、活动和现象的发展变迁史。狭义的公共关系史指现代公共关系事业诞生以来，人类公共关系思想史、实践发展史的形成与变迁。
随便看	protonation constant proton balance proton beam proton beam writing proton binding energy proton bridged ion proton-bridged ion proton capture proton charge radius proton collider proton condition proton condition; proton balance proton conduction mechanism proton conductor proton decay proton-deficient isotope proton-deficient nuclide Proton D family upper stage proton distribution proton donor proton drip line proton drip-line proto-nebula proton-electron-proton reaction protonema

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。