research and development
柯林斯詞典
1. N the part of a commercial company's activity concerned with applying the results of scientific research to develop new products and improve existing ones 研究與開發(fā) ( abbr: R & D)
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1. N the part of a commercial company's activity concerned with applying the results of scientific research to develop new products and improve existing ones 研究與開發(fā) ( abbr: R & D)