| 摘要 |
PROBLEM TO BE SOLVED: To provide an auxiliary vessel for receiving oil, etc., dripping from an oil vessel. SOLUTION: This auxiliary vessel 2 is attachable/detachable to/from a bottom of a vessel 1, and has a cylindrical bottom 2a and an opening part 2b, and forms a space 2c between an outer wall of the vessel 1 and the auxiliary vessel. A projection 2d which can be held is formed on an inner face, and an annular projection 2f is formed on the inner circumference thereof.
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