研发阶段用英语怎么说
在研发阶段，通常用英语表示为 “development stage” 或 “research and development stage”。这个词组来源于英文 “research and development” 的缩写 “R&D”，即研发的意思。
一些英文例句及其中文翻译如下：
The new product is still in the development stage. (新产品仍处于研发阶段。)
We are currently conducting research and development on a new technology. (我们目前正在开发一项新技术。)
The company invested heavily in research and development in order to stay competitive. (公司投入大量资金进行研发，以保持竞争力。)
The development stage of the project is expected to take about a year. (预计该项目的研发阶段将持续大约一年。)
