Ibhotile ye-cryogenic Dewar, eyilwe ngu-Sir James Dewar ngo-1892, sisiqulatho esigciniweyo. Isetyenziswa ngokubanzi ekuthuthweni nasekugcinweni kolwelo oluphakathi (i-nitrogen engamanzi, ioksijini engamanzi, iargon engamanzi, njl.njl.) Kunye nomthombo obandayo wezinye izixhobo zefriji. I-cryogenic Dewar c ...
Funda ngokugqithisileyo