| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel assembly data base retrieval device which easily retrieves required data from a fuel assembly data base without requiring a long time. SOLUTION: Data base tables 1a where data about a fuel assembly and its components are stored are made into a tree including keywords, and a table retrieval processing means 41 retrieves data base tables 1a including data on the basis of data, and a keyword retrieval processing means 42 retrieves data base tables 1a including keywords based on a keyword, and a tree retrieval processing means 43 retrieves data base tables 1a made into a tree, and a fixed from retrieval processing means 44 registers retrieval processings, which are performed by table retrieval, keyword retrieval, and tree retrieval processing means, as retrieval items and retrieves data base tables 1a by a retrieval item.
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