Amathangi wokugcina we-oksitiwe we-liquid kufanele yakhelwe futhi akhiqizwe ngezinto zokuvimbela izinga lokushisa okuphansi, njengensimbi ye-cryogenic noma insimbi engenacala, ukuqinisekisa ukubekwa uphawu kwabo nokubandakanyeka emazingeni okushisa aphansi kakhulu.