英语词汇research, development and demonstration怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

单词	research, development and demonstration
释义	research and development — 研发
随便看	technological business technological capability technological capacities technological capacity technological capacity-building technological chain technological challenges technological changes technological characteristics technological choices technological community technological companies technological competencies technological competition technological competitiveness technological complexities technological complexity technological components technological concept technological conditions technological constraints technological consultancy technological consultation technological consulting technological consulting services

research and development —