European R&D Center欧洲研发中心 Eleanor Roosevelt Democratic Club (Orange County, California)埃莉诺。罗斯福民主俱乐部(奥兰治县,加州) Exploratory Research and Development Center探索性的研究和发展的中心 Environment and Development Resource Centre (Brussels, Belgium)环境与发展中心(比利时布鲁塞尔) Economic Research and Development Center经济研究开发中心 Engineer Research and Development Center工程师研发中心 Energy Research & Development Corporation能源研发公司 Extended Response Data Call扩展的响应数据呼叫