Cov khaub ncaws ua kis las rau cov neeg uas tawm dag zog tuaj yeem ua rau muaj kev ua pa ntau dua, elastic, haum thiab ntau yam zoo rau thaum peb ua kev tawm dag zog, thiab muaj qhov sib txawv ntawm cov khaub ncaws ua kis las thiab cov khaub ncaws ua kis las. Cov khaub ncaws ncaws pob tshaj lij rau cov neeg ncaws pob siv thaum nyob hauv kev sib tw thiab kev xyaum yog ib qho uas tseem tsim nyog siv rau kev tawm dag zog sab nraum zoov.
1. Kev txhim kho tam sim no rau qib siab - ua kis las ncaws pob
Tom qab yuav luag ntau tshaj 20 xyoo ntawm txoj kev loj hlob, kev lag luam txawv teb chaws tau ua kev tshawb fawb thiab kev loj hlob mus rau qib siab - kev lag luam kev ua tau zoo uas nws tau tsom mus rau cov ntaub fibers, ntaub tsim thiab cov qauv khaub ncaws. Los ntawm kev hloov pauv ntawm cov khoom siv fibers xws li lub zog, elongation, modulus, elasticity thiab ntau ntxiv, xaiv cov khaub ncaws tsim nyog thiab cov khaub ncaws muaj peev xwm hloov kho ntxiv rau kev muaj peev xwm xws li dej tsis qab, tswj qhov kub thiab txias, tsis muaj zog, rov ua kom qaug zog, tiv thaiv UV, tiv thaiv - kab mob, ntxhiab tsw thiab ntau ntxiv. Thiab tseem, qhov kev ua tau zoo thiab kev hnav khaub ncaws no tuaj yeem siv los ntawm cov neeg ncaws pob hauv ntau hom kev ua kis las, tsim tawm tsis yog cov khaub ncaws zoo nkauj xwb tab sis kuj siab -cov ris tsho ua kis las rau cov neeg ua si.
2. Kho qhov kub thiab txias
Lub ntsiab lus tseem ceeb los ntawm kev tsim cov khaub ncaws ncaws pob yog kev siv cov khoom siv PCM. PCM tuaj yeem kho lawv lub xeev los ntawm lawv qhov ntsuas kub ib puag ncig, hloov ntawm lub xeev ruaj khov mus rau lub xeev ua kua, rov ua dua, nyob ntawm qhov ntsuas kub ib puag ncig. Nws lub peev xwm yog nqus cua sov los yog tso cua sov. Hnav khaub ncaws ncaws pob nrog nws muaj peev xwm kho qhov kub thiab txias, nrog rau qhov ntawd thaum tus neeg ua haujlwm, cov khoom siv nws tus kheej ua haujlwm nrog tib neeg lub cev, tiv thaiv kev kub ntxhov siab vim kev tawm dag zog.
Raws li qhov kub thiab txias kuj yog ib feem peb yuav tsum muaj kev nplij siab thaum hnav khaub ncaws, nrog rau qhov ntsuas kub hloov kho tshiab uas tsis muaj kev ntseeg siab tuaj yeem ua rau kom muaj kev nplij siab thaum hnav khaub ncaws nws tus kheej.
