When the warm has been released, the cooling agent cools and returns to the system to repeat the procedure until the preferred temperature is reached in the area. https://thundermail.igs.kr/response/response.do?method=MC31549&MMD=NDA3Ng==&SDD=MQ==&MGD=MQ==&SND=NjY4&TGD=MzE2Ng==&EMA=eWRrNTMxQGtvcmVhLmNvbQ==&LKT=MQ==&LKD=NTY3NDM=&URL=http://tiny.cc/