| 摘要 |
Case 10 is characterized by providing a pair of mutually facing surfaces, and a pair of side surfaces which join that pair of surfaces, opening 11 which is the entrance is formed on one of the surfaces 10a of the opposing pair of surfaces, while the opening 12 which is the exit is formed on the other surface 10b, and spaces S1 and S2 are provided between one surface 10a and the hollow fiber membrane stack 20, and between the other surface 10b and the hollow fiber membrane stack 20 in the entire domain in the direction from one side extreme of case 10 to the other side extreme, with the exception of the part where sealing and fixing devices 31 and 32 are provided, moreover, no space is configured between the pair of side surfaces and the hollow fiber membrane stack 20.
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