“研究与开发”概念、定义、翻译-科学时代

单词	研究与开发
释义	社会学词汇手册研究与开发 R&D （research and development）
随便看	angular frequency angular frequency angular histogram angular impulse angular impulse angular leaf spot of cotton angular leap angular liner angular magnification angular magnifying power angular measure angular momentum angular momentum angular momentum angular momentum angular momentum angular momentum angular momentum balance angular-momentum conservation angular-momentum conservation law angular momentum conservation law angular momentum desaturation angular momentum dumping angular momentum exchange control angular momentum operator

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。