Therm %ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%A8%EC%97%90%EC%84%9C calculation %EC%8B%A4%ED%96%89%EC%8B%9C %EC%98%A4%EB%A5%98 %EB%AC%B8%EC%A0%9C%EC%9E%85%EB%8B%88%EB%8B%A4.