| 摘要 |
PURPOSE:To provide the bubbling device which can efficiently dissolve and absorb released bubbles into a preserving liquid and can dissolve and absorb the bubbles uniformly over the entire part of the preserving liquid. CONSTITUTION:This bubbling device has a gas release surface 12 for releasing the gas supplied from the outside in a fine bubble form into the liquid. This gas release surface 12 is formed of porous ceramics 9a to 9d having numerous fine continuous open cells.
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