| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that water which dissolves air supersaturatedly cannot be efficiently prepared due to requiring a pressurized pump and a pressure control valve in a conventional air dissolving device. SOLUTION: Water dissolved with air supersaturatedly in a dissolving tank can be prepared, by a batchwise treatment, only by the power of an air compressor using an air dissolving device shown by Fig. COPYRIGHT: (C)2005,JPO&NCIPI
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