Cov kab hluav taws xob thiab cov kab hluav taws xob yog cov khoom siv tseem ceeb rau cov neeg siv thaum siv hluav taws xob, thiab lawv qhov zoo cuam tshuam ncaj qha rau hluav taws xob kev nyab xeeb ntawm cov tsev neeg suav tsis txheeb. Yog li ntawd, muaj peev xwm sai thiab raug kuaj xyuas qhov zoo ntawm cov xaim hluav taws xob (xws li cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov hluav taws xob hluav taws xob, cov hluav taws xob hluav taws xob, cov hluav taws xob hluav taws xob, cov hluav taws xob hluav taws xob, cov hluav taws xob hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, hluav taws xob, hluav taws xob, hluav taws xob, hluav taws xob, hluav taws xob, hluav taws xob, hluav taws xob, hluav taws xob, hluav taws xob, hluav taws xob conductors, thiab lwm yam) yog ib qho txuj ci uas cov kws hluav taws xob yuav tsum paub.
Cov xaim hluav taws xob yuav tsum tau yuav los ntawm cov khw muag khoom muaj npe nrov, nrhiav lub teb chaws hluav taws xob daim ntawv pov thawj (Great Wall logo) thiab cov cim lag luam, cov lus qhia tshwj xeeb, thiab qhov hluav taws xob luam tawm ntawm cov xov hlau.
Kev kho kom zoo nkauj hauv tsev tsis tuaj yeem ua yam tsis muaj hluav taws xob, tshwj xeeb tshaj yog nyob rau hauv cov tsev laus. Txawm hais tias me me, hluav taws xob xaim hluav taws xob ua lub luag haujlwm tseem ceeb. Ntau qhov hluav taws kub yog tshwm sim los ntawm kev laus cov hlua, kev teeb tsa tsis raug, lossis kev siv cov xov hlau tsis zoo. Yog li ntawd, cov neeg siv khoom yuav tsum paub meej thaum yuav khoom siv hluav taws xob los tiv thaiv kev phom sij.
Kev ua lag luam muaj ntau hom hluav taws xob xaim hluav taws xob, kev qhia tshwj xeeb, thiab tus nqi, ua rau kev xaiv nyuaj rau cov neeg siv khoom. Hais txog tus nqi ntawm 2.5 square millimeter thiab 4 square millimeter tooj liab cores feem ntau siv hauv tsev kho kom zoo nkauj, ib qho spool ntawm cov xov hlau ntawm tib lub ntsiab lus tuaj yeem sib txawv ntawm tus nqi los ntawm 20% mus rau 30% nyob ntawm cov chaw tsim khoom. Cov neeg siv khoom pom tias nws nyuaj dua los txiav txim qhov zoo lossis ntev.
Raws li kev lag luam sab hauv, tus nqi sib txawv loj hauv cov xov hlau yog vim cov khoom siv sib txawv siv hauv cov txheej txheem tsim khoom. Cov ntaub ntawv tseem ceeb rau kev tsim cov xov hlau yog electrolytic tooj liab, cov ntaub ntawv rwb thaiv tsev, thiab cov ntaub ntawv sheathing. Hauv kev lag luam raw khoom, electrolytic tooj liab raug nqi ib ncig ntawm 20,000 yuan ib tuj, thaum siv tooj liab tsuas yog nyob ib ncig ntawm 15,000 yuan ib tuj. High-cov ntaub ntawv rwb thaiv tsev zoo thiab sheathing raug nqi 8,000 txog 8,500 yuan ib tuj, thaum cov khoom tsis zoo tsuas yog nqi 4,000 txog 5,000 yuan ib tuj, ib qho tseem ceeb ntawm tus nqi sib txawv. Tsis tas li ntawd, qhov ntev tsis txaus thiab tsis txaus cov ntsiab lus nplaum hauv cov rwb thaiv tsev kuj tseem ceeb vim li cas rau qhov sib txawv ntawm tus nqi. Txhua kauj ntawm hlau yog 100 meters ntev rau cov khoom superior, thaum rau cov khoom tsis zoo nws tsuas yog hais txog 90 meters. Cov ntsiab lus rwb thaiv tsev nplaum yog 35% -40% rau cov khoom zoo, thaum nws tsuas yog 15% rau cov khoom tsis zoo. Los ntawm qhov kev sib piv no, cov neeg siv khoom tuaj yeem pom tau yooj yim tias tus nqi sib txawv ntawm cov xaim tiav yog vim qhov tsis sib xws ntawm cov khoom siv.
Ua ntej, tshuaj xyuas cov hlau. Txheeb xyuas qhov system ntawv pov thawj zoo; xyuas seb daim ntawv pov thawj ntawm kev ua raws li tus qauv; tshawb xyuas cov chaw tsim khoom lub npe, chaw nyob, tshuaj ntsuam xyuas, thiab hnub tsim khoom; xyuas yog tias cov hlau luam tawm nrog cov cim lag luam, cov lus qhia tshwj xeeb, qhov hluav taws xob, thiab lwm yam. Tsis tas li ntawd, tshuaj xyuas tus ntoo khaub lig- ntu ntawm cov tub ntxhais tooj liab; superior khoom muaj ib tug ci, mos liab doog tooj liab xim, txwv tsis pub nws yog inferior.
Thib ob, sim cov hlau. Nqa ib daim hlau thiab khoov nws rov qab los ntawm tes. Cov khoom lag luam zoo tshaj plaws yog cov uas xav tias mos, muaj zog tiv taus zoo, muaj elasticity siab hauv cov yas lossis roj hmab, thiab tsis muaj kab nrib pleb hauv rwb thaiv tsev.
