Nyob rau hauv daim teb ntawm cov zaub mov ntim, cov khoom ntim khoom noj nyias nyias Nws cov qauv tsim tshwj xeeb hauv paus ntsiab lus ntau yam kev txiav txim siab, uas tsis yog raws li cov kev xav tau, tab sis kuj ua raws li kev tiv thaiv kev tiv thaiv ib puag ncig.
Tus tsim ntawm cov khoom ntim cov phab ntsa nyias ua ntej tsom rau kev xaiv cov ntaub ntawv. Cov khoom siv yas nrog qee yam muaj zog thiab tawv yog siv, xws li cov roj ntsha, polypropylene, thiab lwm yam tuaj yeem txo tus nqi tsim khoom thaum ua kom muaj kev ua haujlwm yooj yim ntawm lub thawv. Los ntawm kev tswj hwm thiab kev tswj hwm cov txheej txheem, cov tuab ntawm cov khoom mus txog ib qho kev cuam tshuam, uas tsis tuaj yeem tiv thaiv qhov hnyav ntawm cov zaub mov thiab muaj qee yam kev tsim sab nraud, tab sis kuj tseem ua tiav kev tsim duab nyuaj.
Nyob rau hauv cov nqe lus ntawm cov qauv tsim qauv, cov khoom noj uas muaj nyias cov thawv ntim tsom rau kev rov ua haujlwm thiab ruaj khov. Phab ntsa ntawm lub thawv ntim feem ntau tau txais kev hloov pauv kom tsis txhob muaj kev ntxhov siab, yog li kev txhim kho cov thawv compressive ntawm lub thawv. Nyob rau tib lub sijhawm, kev tsim hauv qab hauv qab feem ntau yog los txais cov qauv tshwj xeeb, xws li kev tsim qauv, square lossis ribbed tsim los ua kom muaj kev ruaj khov ntawm lub thawv thaum nws muab tso rau. Ib qho ntxiv, rau qhov yooj yim ntawm kev siv thiab cia, cov duab ntawm cov ntim yuav ua kom zoo raws li cov yam ntxwv ntawm cov khoom noj sib txawv. Piv txwv li, cov duab hloov yog tsim nyog rau cov zaub mov ua kua, thaum lub teeb square yog yooj yim dua rau pawg.
Ib qho tseem ceeb tsim qauv kev tiv thaiv yog kev tiv thaiv ib puag ncig. Nrog rau kev txhim kho ib puag ncig ib puag ncig, cov rov qab ua dua tshiab ntawm cov thawv ntim khoom noj nyias nyias muaj qhov tseem ceeb hauv kev tsim. Cov neeg tsim qauv yuav sim xaiv cov khoom siv rov siv dua tshiab thiab ua kom cov ntim tau yooj yim cais thiab kov tom qab siv los txo qhov kev cuam tshuam rau ib puag ncig.
Nyias-walled zaub mov ntim cov ntim khoom noj kuj tseem niaj hnub txhim kho hauv kev ua haujlwm thiab cov tsos mob. Qee lub ntim yog tsim nrog cov hau nrog kev sib khi tau zoo, uas tuaj yeem txuas ntxiv rau lub neej txee ntawm cov zaub mov. Nyob rau tib lub sijhawm, cov tsos tsim qauv kuj them ntau dua rau kev yooj yim thiab muaj kuab heev kom tau raws li cov neeg siv khoom zoo nkauj.
Hauv ntej, tus tsim qauv ntawm cov khoom ntim khoom noj nyias nyias yog kom muaj kev tiv thaiv cov zaub mov yooj yim, muaj kev tiv thaiv ib puag ncig, muab cov tshuaj muaj txiaj ntsig rau cov zaub mov ntim khoom noj.
