research and development (used as an uncountable noun 用作不可数名词)
work that examines new ideas and tries to develop new products and processes 研究与开发◆The company spends $5 billion a year on R&D. 公司每年花费 50 亿元在研发方面。◆Our research and development budget has been cut. 我们的研发预算已被削减。
the department in a company that tries to develop new products and ideas and improve existing ones 研究与开发部门◆the chairman of research and development 研发部主席◆I work in the R&D division. 我在研发部门工作。