72h Ukuhlolwa Kwezinga Eliphansi Lokushisa -70 °C

Isiphetho:Ngaphansi kwezinga lokushisa le-ambient elingu-36 ℃, le phakheji ingagcina izinga lokushisa langaphakathi liku-minus 70℃ isikhathi esingaphezu kwamahora angu-72.