research and development activities的用法和樣例：
例句
- The Measures define research and development activities and specify the super-deduction of the expenses incurred therefrom.
辦法界定研究開(kāi)發(fā)活動(dòng)的定義，并規定其費用支出的加計扣除。 - New product development activity must focus on continuous product improvement.
新產(chǎn)品開(kāi)發(fā)活動(dòng)必須集中在不斷的產(chǎn)品改良上。
