Cov khob ntawv yog cov khoom siv pov tseg hauv peb lub neej niaj hnub, thiab kev xaiv cov khoom siv raw cuam tshuam ncaj qha rau qhov zoo thiab kev siv ntawm cov khob ntawv.Lub ntsiabraw khoom ntawm daim ntawv khobfeem ntau yog cov ntawv qib zaub mov thiab PE zaj duab xis, ob qho tib si muaj lawv qhov zoo.

Ua ntej ntawm tag nrho cov, zaub mov qib ntawv yog lub ntsiabraw khoom ntawm daim ntawv khob, uas muaj zoo formability thiab stability.Cov ntawv zoo li no tau raug kho tshwj xeeb kom ntseeg tau tias tsis muaj cov tshuaj phem yuav raug tsim tawm thaum nws los rau hauv kev sib cuag nrog cov zaub mov lossis dej haus, ua kom muaj kev nyab xeeb ntawm cov khob ntawv.Nyob rau tib lub sijhawm, cov ntawv qib zaub mov muaj zog formability thiab tuaj yeem ua tau yooj yim rau hauv cov ntawv khob ntawm ntau cov duab thiab ntau thiab tsawg kom tau raws li qhov xav tau ntawm ntau lub sijhawm.

Qhov thib ob, PE zaj duab xis yog txheej dej tsis muaj dej hauv lub khob ntawv, uas tuaj yeem tiv thaiv lub khob ntawv kom tsis txhob xau thaum nws ntim nrog kua.PE zaj duab xis tsis tsuas yog muaj cov dej tsis zoo, tab sis kuj muaj cov cua sov zoo heev, uas tuaj yeem tiv taus qhov kub ntawm cov dej kub thiab ua rau lub khob ntawv ruaj khov thaum siv.

Feem ntau, qhov zoo ntawm daim ntawv khob raw cov ntaub ntawv yog feem ntau xav txog lawv txoj kev nyab xeeb, formability thiab dej tsis kam.Cov txiaj ntsig zoo no ua rau lub khob ntawv tuav lub luag haujlwm tseem ceeb hauv cov khoom siv pov tseg thiab tau siv dav hauv ntau lub sijhawm.

Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias txawm tias qhov zoo ntawm cov khob ntawv, kev cia siab dhau ntawm cov khoom siv pov tseg tseem muaj kev cuam tshuam ib puag ncig.Yog li ntawd, thaum txaus siab rau qhov yooj yim nqa los ntawm khob ntawv, peb yuav tsum nquag txhawb nqa thiab siv cov khoom siv rov siv dua kom ua tiav txoj kev loj hlob.

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