| 摘要 |
PROBLEM TO BE SOLVED: To certainly cool cooling water without providing a particular instrument for cooling the cooling water even if a capacity is small. SOLUTION: A cooling water cooling part 40 for cooling the cooling water by delivery water flowing in a pump maine pipe 14 accompanying with an operation of a main pump 12 is provided on a periphery of the pump main pipe 14 extending from the main pump 12. COPYRIGHT: (C)2004,JPO
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