Nws yuav tsum muaj kev nyab xeeb thiab tsis txhob ntshai hais, tab sis nws yog qhov muaj kev nyab xeeb rau cov khoom noj niaj hnub nrov (tshwj tsis yog koj siv cov khoom siv iav kom tawg, qhov kev puas tsuaj los ntawm nws yog lwm qhov).Raws li koj lub ntsiab lus, nws yuav tsum txhawj xeeb seb cov zaub mov puas yuav cuam tshuam nrog cov tshuaj muaj pes tsawg leeg hauv khob, ua rau cov zaub mov lom, puas yog?Thov muab ib puas lub siab!Vim tias cov txheej txheem melting yuav tsum tau ua nyob rau hauv cov txheej txheem ntawm melting ntab iav (xim iav) kom tiav cov txheej txheem melting.
Tsis tas li ntawd, iav yog amorphous inorganic non-metal khoom, thiab feem ntau siv ntau yam inorganic minerals (xws li quartz xuab zeb, borax, boric acid, hnyav siv lead ua pob zeb, carbonate, limestone, pob zeb ntev, ntshiab alkali, thiab lwm yam).Ua tiav.Ntau cov ntaub ntawv yuav tsis yooj yim rau yaj ntawm qhov kub thiab txias.
Yog li ntawd, tsis muaj teeb meem kev ruaj ntseg hauv cov zaub mov.Tsis tas li ntawd, cov iav muaj yeeb yuj lossis ntsev uas sib xyaw nrog qee cov hlau hauv lub khob kuj yog ua los ntawm cov iav xim uas qhia cov xim thiab yog tsim los ntawm kev siv lub cev lossis tshuaj.Yog li tsis txhob txhawj tias nws yog txheej txheej zoo tib yam rau ntawm iav nto.
Post lub sij hawm: Apr-26-2023