Cov ntawv kab xev muaj ntau tus yam ntxwv, xws li thim rov qab zoo nkauj, daim kab xev tsis yooj yim tawg, cov tshuaj hnyav hnyav ua haujlwm hnyav, yooj yim dua thiab siv tau yooj yim.
Nco tseg thaum siv: Cov nplaum yuav tsum khaws cia kom qhuav thiab huv, thiaj li tsis cuam tshuam rau daim kab xev nplaum thiab nws cov txiaj ntsig; siv qee qhov quab yuam thaum gluing, kom cov kab xev thiab cov nplaum tuaj yeem ua ke tau zoo dua; xyuam xim kom tsis txhob muaj kab xev raug rau tshav ntuj, thiab lwm yam.
Yuav ua li cas los txiav txim qhov zoo ntawm qhov kub thiab txias daim kab xev?
Ib qho saib: seb cov xim muag muag thiab txawm tias, thiab puas muaj cov kua nplaum thiab kua nplaum.
Qhov thib ob rub: Lub zog tensile yuav tsum zoo heev, tsis yooj yim tawg.
Peb co: Nws tseem muaj qhov viscosity zoo thaum co ob peb zaug hauv kev siv, thiab nws tsis plam tawm yooj yim.
Plaub kov: Tes zoo dua.
Tsib tus ntxhiab: saib seb puas muaj ntxhiab tsw ntxhiab.
