技术研发费用英语怎么说

技术研发费用英文称为 "research and development costs"。这些费用主要来源于公司或组织所投入的时间和资金，用于研发新的技术或改进现有的技术。
例句：
The company's research and development costs increased significantly last year due to the development of a new product line.
In order to remain competitive, it is important for companies to continuously invest in research and development to improve their products and processes.
The research and development costs for this project are estimated to be $500,000.
中文翻译：
去年公司的研发费用大幅增加，因为新的产品线正在开发中。
为了保持竞争力，公司必须不断投资研发，以改进产品和流程。
这个项目的研发费用估计为50万美元。