| 摘要 |
PROBLEM TO BE SOLVED: To provide a means for suppressing the deformation of a container member in the container vessel for containing a structure including radioactive materials without decreasing containing density of a radioactive material. SOLUTION: In the container member constituted of partition walls combined with plate members and having a plurality of containing parts of the structure, an end support member having a partition support for supporting the inner wall surface of at last one containing part is provided at the end of the opening side so that deformation of the inner wall surface of the containing part in the perpendicular direction can be suppressed.
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