“D--R &--D (research and development)”概念、定义、翻译-科学时代

单词	D--R &--D (research and development)
释义	国际贸易词汇手册 R & D (research and development) 研究与开发
随便看	cockpit Cockpit cockpit cockpit cockpit cockpit display Cockpit Meeting cockroach cockscomb cockscomb cock's comb cockscomb cockscomb cockscomb burner cockscomb--cockscomb（flower） cockscomb（flower） cocksfoot cockspur burner cocktail cocktail cocktail drama cocktail fruit in syrup cocktail fruit jam cocktail glass cocktail juice

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。

R & D (research and development)