thawv kev taw qhia
Thaum cov pa npuas lossis qhov tsis haum yog cov kua hauv lub cev, txawm tias qhov ntsuas kub tau ncav thiab dhau qhov taw tes npau npau, nws yuav tsis rhaub thiab tsim cov kua superheated. Cov kua dej superheated tsis ruaj khov. Yog hais tias qhov ntsuas kub ntawm sab nraud ntawm cov kua superheated poob dheev lossis nkag rau hauv huab cua npuas lossis impurities, nws yuav tsim kev kub ntxhov nrog lub suab popping. Qhov tshwm sim no hu ua thawv pob.