N 开头单词
national disease and therapeutic index [农业科学]全国疾病和治疗索引
national disaster medical system
national difference 民族差异
national development finance corporation
national development 国家发展
national democratic revolution [政治学]民族民主革命
national defense patent [法学]国防专利权
national defense act [法学]国防法
national defence university [军事学]中国人民解放军国防大学
national defence of modernization construction [军事学]国防现代化建设
national defence consciousness [军事学]国防意识
national defence budget [管理学]国防预算
national debt policy [经济学]国债政策