When the refrigerator 9 is operated, the cooling water 2 is cooled by latent heat of vaporization of {HEAD ~ a coolant} flowing inside {TAIL ~ the evaporator} 10 
When the refrigerator 9 is operated , the cooling water 2 is cooled by latent heat of vaporization of { HEAD ~ a coolant } flowing inside { TAIL ~ the evaporator } 10
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH