Cov khoom noj iav iav, raws li cov khoom tseem ceeb hauv kev tsim kho niaj hnub, rwb thaiv tsev ua si yooj yim, nqus cua kub, thiab hluav taws kub tiv thaiv cov yam ntxwv. Nrog rau qhov sib sib zog nqus ntawm kev lag luam thoob ntiaj teb, kev lag luam txawv teb chaws rau cov khoom lag luam rau iav ntxiv rau ntau cov tuam txhab nrhiav kom muaj kev lag luam txawv teb chaws.
Iav cov ntaub plaub, ua los ntawm cov iav fiber ntau, muaj ib lub teeb yuag, muaj cov qauv sib tw uas tau hloov pauv kub thiab txo cov suab nrov. Cov khoom no ua kom nws dav siv nyob rau hauv kev tsim sab nrauv phab ntsa, piping rwb thaiv tsev, kev lag luam suab nrov txo, thiab hluav taws tiv thaiv cov nkoj thiab tsheb. Thoob ntiaj teb, thov kom high- est east materials materials, thiab Tebchaws Asmeskas tau ntsib cov khoom lag luam hauv tebchaws Europeast, thiab cov khoom siv hluav taws xob hauv qab teb chaws sab hnub tuaj.
Thaum txhawb nqa iav cov khoom lag luam txawv teb chaws yuav tsum tsom rau cov qauv lag luam thoob ntiaj teb thiab cov qauv u's CE Tsis tas li ntawd, ib puag ncig kev kawm tau dhau los ua qhov tseem ceeb rau cov neeg yuav khoom hauv ntiaj teb, nrog qis- plua plav, rov ua iav cov khoom lag luam tau tshwj xeeb. Los ntawm kev txhim kho cov txheej txheem ntau lawm thiab kev siv hluav taws xob ntau dua thiab cov tuam txhab tsis tuaj yeem tsuas yog txhim kho cov khoom hauv ntiaj teb hauv kev txhim kho hauv ntiaj teb.
Cov tswv yim sib txawv kuj tseem muaj kev tseem ceeb hauv kev sib tw ua lag luam. Cov tuam txhab tuaj yeem muab cov kev daws teeb meem iav iav tau raws li cov neeg siv khoom, xws li kev hloov kho fiber ntau lossis cov nplaim hluav taws xob rov qab kom tau raws li cov ntawv thov. Tsis tas li ntawd, ntxiv dag zog rau tom qab {2} kev muag khoom thiab kev txhawb nqa los pab cov neeg txawv teb chaws zoo dua siv lawv cov khoom lag luam tuaj yeem sib xyaw ua ke lawv txoj haujlwm ua lag luam.
Yav tom ntej, nrog kev txhim kho ntawm lub zog thoob ntiaj teb {{0} Taug kev hloov pauv, cov khoom lag luam txawv teb chaws ntawm iav wool cov khoom lag luam yuav txawm ci ntsa iab. Cov tuam txhab yuav tsum tau saib xyuas kom ze rau kev ua lag luam, ua ntej thev naus laus zis thev naus laus zis thiab zoo dua qub kev sib tw ua haujlwm thoob ntiaj teb.