| 摘要 |
PROBLEM TO BE SOLVED: To provide a feeder for large quantity of minus ions using a natural material. SOLUTION: A casing 1 is filled with water and the water is sprayed from a water jet port 8 to a generating material 5 by a water pump 7. The generating material 5 is passed from an air intake 2 by a blower 6 and guided to a sending port 3. COPYRIGHT: (C)2004,JPO
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