| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum container which allows the size/weight of its cover and the total cost including the maintainability to be reduced. SOLUTION: The vacuum container 10 comprises a frame 11 having an opening at the top end and an openable cover 12 for sealing the interior from the top end opening of the frame 11. The cover 12 is divided into a first and second cover members 12A, 12B and has a seal-assisting member 18 between the cover members 12A, 12B and the top end face 11A of the frame 11. COPYRIGHT: (C)2005,JPO&NCIPI
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