单词：aec 

名词

• 
  [1.n.aec] (同义词:[Atomic_Energy_Commission(n.原子能委员会 )]  [AEC(=Atomic Energy Commission 原子能委员会[美] )]  )
• 
  注释列句：a former executive agency (from 1946 to 1974) that was responsible for research into atomic energy and its peacetime uses in the United States
• 上位词 -> [executive_agency]  [agency( n. 代理处, 行销处, 代理, 中介 )]  [administrative_unit]  [unit( n. 个体, (计量)单位, (军队的)部队单位, [数学]最小的整数 )]  [organization( n. 组织, 机构, 团体 )]  [social_group]  [group( n. 团体, 组, 团, 群, 批, [地]界, [化]基 v. 聚合, 成群 )]  [abstraction( n. 提取 )]  [entity( n. 实体 )] 
• 部分总称 -> [executive_branch] 
  所有总称 -> [executive_branch]