Qhov nro ntawm lub rivet core tsis ruaj khov, lub zog ntawm qhov tawg zoo ib yam li qhov nro ntawm lub rivet core, lossis kev kho cua sov tsis tau ua haujlwm zoo, lub rivet core tawg yooj yim, thiab lub rivet core yuav tawg thaum siv.
Tseem muaj rivet ntawm lub hauv paus rub tawm uas yog ua ntej rub lub hauv paus rivet uas twb puas lawm, qhov no yuav tsum tau kuaj xyuas cov khoom tsim nyog ua ntej siv.
Tib lub sijhawm, cov khoom siv yuav tsum tau them sai sai rau. Kev sim kos duab khoom siv yuav tsum tau ua thaum yuav cov khoom siv. Thaum cov khoom siv mus txog tus qauv, nws tuaj yeem siv tau, txwv tsis pub nws yuav tsum tau rov ua dua. Peb yuav tsum zam cov teeb meem zoo li no hauv kev ua haujlwm tiag tiag. Ntxiv nrog rau kev tshuaj xyuas nruj ntawm cov khoom siv raw, peb kuj yuav tsum tau saib xyuas los ntawm lub sijhawm mus rau lub sijhawm thaum lub sijhawm tsim khoom, thiab los ntawm lub sijhawm mus rau lub sijhawm, kom paub meej tias qhov ruaj khov ntawm cov khoom siv thiab cov khoom. Qhov no tuaj yeem ntau dua 95% Tsis txhob tsim cov khoom siv ntsia hlau tawg hauv lub sijhawm tom qab.
Lub sijhawm tshaj tawm: Lub Peb Hlis-08-2021