[經(jīng)] 實驗性研究及開發(fā)費 other research and development expenses: 其它研究發(fā)展費用research and development expenses: 研究發(fā)展費用; 研究開發(fā)費用experimental expenses: 實驗費用; 試驗費experimental research: 實驗法; 實驗性研究; 試驗調(diào)查; 準實驗研究experimental development: 實驗發(fā)展下載手機詞典可隨時隨地查詞查翻譯