Cov chav dej yuav tsum tau ---- Ntxuav cov khaub ncaws huv
Cov khaub ncaws hnav feem ntau yog hu ua khaub ncaws hnav los sis ntxuav khaub ncaws hauv thaj chaw ntxuav kev tshuaj thiab khoom noj. Qee cov neeg tsis muaj kev txhawj xeeb yuav nug txog, siv cov khaub ncaws zoo li cas? Puas muaj nqis dab tsi hauv hav zoov? Cov lus teb yog ntawm qhov tseeb affirmative + affirmative.
Kev ua haujlwm ntawm cov khaub ncaws tsis huv yog tsim nyog, thiab qhov nqi yog qhov tsis muaj. Cov khaub ncaws huv lawv tus kheej tsis muaj hmoov av. Vim nws tau hnav hauv chav tu chav, nws yuav tsum tau siv cov ntaub npog tsis tau siv ua plua plav hauv chav ntxuav chav, thiab cov fibers xws li paj rwb thiab ntaub ntoo yuav siv tsis tau. Ntxiv nrog rau kev tsis zoo, nws kuj muaj kev cuam tshuam zoo li qub los tiv thaiv cov khaub ncaws ntawm absorbing plua plav, thiab tib lub sij hawm, tom qab kev kho tshwj xeeb, kev ua haujlwm zoo li niaj hnub ua kom ruaj khov thiab muaj txiaj ntsig.
Cov khaub ncaws tsis muaj plua tshauv muaj qhov muaj peev xwm ua kom muaj plua plav, uas tuaj yeem tiv thaiv cov khoom me me uas ua los ntawm cov neeg ua haujlwm hauv cov khaub ncaws tsis huv thiab tsis pub lawv tawm hauv cov pa. Ntawm chav kawm, kev txhim kho cov plua tshauv ploj yog nyob ntawm cov nqi ntawm cov paj ntaub ntawm cov ntaub, thiab tus neeg hnav lub cev tsis zoo.
Cov khaub ncaws kom huv yog siv rau txhua yam lag luam xws li cov khoom siv hluav taws xob, tshuaj, aviation, thiab lwm yam. Nws yog ib qho ntawm cov khaub ncaws ua hauj lwm hauv cov khoom lag luam. Hnav cov khaub ncaws tsis huv tsuas yog tiv thaiv tib neeg lub cev xwb, tab sis kuj ua cov khoom. Kev ruaj ntseg, thiab tiv thaiv cov cai ntawm cov neeg tau txais kev pab.