An evaporator 10 is provided along the inner wall of the cooling water tank 1 and connected to {HEAD ~ a refrigerator} 9 arranged below {TAIL ~ the main body} 50 
An evaporator 10 is provided along the inner wall of the cooling water tank 1 and connected to { HEAD ~ a refrigerator } 9 arranged below { TAIL ~ the main body } 50
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH