| 摘要 |
PROBLEM TO BE SOLVED: To provide a washing method providing the high washing capacity. SOLUTION: The washing method comprises a step of changing the ambient pressure of a washing liquid during the removal of stains adhering to a work, which is an object to be washed, by bringing the washing liquid into contact with the work. In this case, it is preferable to periodically repeat the step of increasing the pressure and the step of decreasing the pressure a plurality of times.
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