| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for supplying cooling water by which the circulation of the cooling water is reasonably carried out, and an apparatus and a method for manufacturing a preform for an optical fiber using the same. <P>SOLUTION: In the method for supplying circulation water for cooling to circulate the cooling water to a heating apparatus, the cooling water is supplied to the heating apparatus from a circulation water tank and the cooling water after cooling the heating apparatus is returned to a condensate tank to be circulated. <P>COPYRIGHT: (C)2003,JPO</p> |
