Vim li cas koj daim iav chav dej yuav tsum tsis muaj tooj liab?
Puas yog koj tom qab daim iav chav dej zoo uas kav ntev?Atooj liab dawb daim iavkav ntev li 3 lub sij hawm ntev dua li daim iav qauv ua nrog tooj liab sulfate.Tsis tas li ntawd, nws muaj peev xwm tiv taus cov av noo, noo noo, corrosion thiab ntau yam kev nyab xeeb rau kev tsim khoom.Ntau lub tuam txhab tau hloov pauv mus rau cov khoom tsis muaj tooj liab, nrog cov iav uas ua rau lub neej tsis muaj tooj liab raug hu ua 'daim iav niaj hnub tshaj plaws.
Yuav ua li cas peb tsim daim iav tsis muaj tooj liab?
Cov txheej txheem tsis muaj tooj liab yog thawj zaug coj mus rau hauv European kev lag luam hauv xyoo 1998. Hauv kev lag luam iav,iav tsis muaj tooj liabraug suav hais tias yog 'daim iav niaj hnub tshaj plaws'.Qhov tseem ceeb, txhua yam uas tau sau tias tsis muaj tooj liab tau dhau los ua ob lub tsho xim txheej txheem ntawm cov tshuaj uas tsis muaj hlau lead lossis txhuas, thiab cov tshuaj tsis muaj tooj liab.Ua ntej, thaum daim iav tseem yog ib daim iav xwb, iav yog coated hauv silver nitrate kom tau 'daim iav nyhuv.'Tom qab ntawd nws tau txais kev kho ua ntej, thiab ua tiav nrog ob-kauj ruam txheej.Rau sab nraub qaum ntawm daim iav, ib zaug tag nrho cov hlau thav duab tau txuas nrog, daim iav yog tom qab ntawd npog los ntawm cov xim tiv thaiv rov qab.Cov xim no tiv thaiv lub nraub qaum los ntawm qhov chaw corrosion thiab khawb, zoo ib yam li cov iav txheej.
Post lub sij hawm: Jan-11-2022