{HEAD ~ an agitator} for stirring the cooling water, the agitator including a blade portion, a motor portion and supporting members supporting said motor portion, said blade portion being disposed inside the coil formed by the cooling pipe, said motor being disposed above a surface of the cooling water and being supported by {TAIL ~ said supporting members}, said supporting members being fixed to a bottom of the cooling water tank, 
{ HEAD ~ an agitator } for stirring the cooling water , the agitator including a blade portion , a motor portion and supporting members supporting said motor portion , said blade portion being disposed inside the coil formed by the cooling pipe , said motor being disposed above a surface of the cooling water and being supported by { TAIL ~ said supporting members } , said supporting members being fixed to a bottom of the cooling water tank ,
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