Muaj ob lub laj thawj tseem ceeb rau cov ntaub pua plag tsev so tuaj tos thiab quav, ib qho yog vim tias cov ntaub pua plag tsev so tau siv sijhawm ntev, ua rau tsis muaj kev ruaj ntseg ntawm cov ntaub pua plag tsev so. Qhov no zoo li hnav khaub ncaws rau lub sijhawm ntev, ntxhua ntau zaus, feem ntau yuav muaj cov khaub ncaws tawm ntawm qhov zoo li qub, vim tias ntev dhau lawm cov ntaub pua plag tib cov ntaub pua plag yog maj mam poob qhov qub elasticity tshwm sim los ntawm.
Yog li cas lub hnab thiab quav yuav daws tau li cas? Feem ntau ntawm cov dav dav lub tsheb thauj khoom siab tawm tuaj yeem daws tau, tsuas yog yuav tsum tau nruab tus tswv kom rov tiaj tus deformation ntawm cov ntaub pua plag. Lub deformation ntawm cov ntaub pua plag los ntawm cov ntaub pua plag rau lub sijhawm ntev tuaj yeem daws tau ib ntus los ntawm tus tswv lub re-installation, thiab tsis tuaj yeem khaws cia rau lub sijhawm ntev. Thiab raws li kev pab cuam lub neej ntawm cov ntaub pua plag tsev so ua ntev thiab ntev, qhov teeb meem ntawm kev ntim khoom thiab folding tshwm sim los ntawm qhov laj thawj ntawm lub hnub nyoog yuav dhau los ua qhov hnyav dua, thiab maj mam ua irreparable, thiab thaum kawg tuaj yeem hloov cov ntaub pua plag xwb.