Kev tsom xam qhov tob ntawm lub hauv paus ntsiab lus ntawm kev ntxuav dej khov qhuav

Cov dej khov qhuav qhuav, tseem hu ua cov tshuaj tsuag txias, siv cov cua compressed raws li lub zog thiab cov cab kuj, thiab cov dej khov qhuav qhuav raws li cov khoom nrawm. Nws yog txau rau saum npoo ntawm cov khoom kom ntxuav los ntawm lub tshuab ntxuav tshwj xeeb. Lub zog hloov pauv, sublimation, melting thiab lwm lub zog hloov pauv ntawm kev kub ceev txav cov khoom khov qhuav qhuav yog siv los ua kom khov cov av, roj, seem impurities, thiab lwm yam nyob rau saum npoo ntawm cov khoom yuav tsum tau ntxuav, kom lawv condense. , ua nkig, thiab raug tshem tawm, thiab raug tshem tawm nrog cov cua ntws tib lub sijhawm. Nws yuav tsis ua rau muaj kev puas tsuaj rau qhov chaw ntawm cov khoom yuav tsum tau ntxuav, tshwj xeeb tshaj yog cov hlau nto, thiab nws yuav tsis cuam tshuam rau qhov tiav ntawm cov hlau nto.