Qhov zoo ntawm cov khoom siv sib nqus tswj hwm
Cov Sib Nqus Sib Nqus muaj lub qauv yooj yim, tsis tshua muaj zog noj qis, tswj kev ntxhov siab ntau yam, thiab muaj kev tswj xyuas sai sai ntawm lub zog quab yuam. Nws tsis rhiab rau impurities thiab muaj kev ua haujlwm kub ntau thiab tuaj yeem ua haujlwm ntawm -50 ° C txog 140 ° C. Lub tshuab hluav taws xob tsis tuaj yeem siv ncaj qha los ntawm ib qho hluav taws xob qis hluav taws xob (lub roj teeb hluav taws xob) kom tsis txhob muaj kev phom sij thiab kev tsis yooj yim tshwm sim los ntawm qhov hluav taws xob siab. Piv nrog rau kev siv lub tsheb qub tso tawm kev poob siab, cov khoom siv txav tau zoo heev, thiab yuav luag tsis muaj kev sib tsoo, yog li lub suab nrov qis tsawg.