Shoelace, khau khiab in English.Raws li lub npe implies, nws yog siv.Tab sis qhov no tsis yog ib txoj siv zoo tib yam, uas yog siv los khi rau sab hauv thiab sab nrauv ntawm nkawm khau, kho lub sab sauv, kho qhov nruj ntawm nkawm khau, thiab xyuas kom muaj kev nyab xeeb ntawm pob taws.Dav siv nyob rau hauv txhua yam ntawm cov khau kis las, xws li khau thiab hnav khau.Raws li cov ntaub ntawv keeb kwm, thaum ntxov li 5000 xyoo dhau los, tib neeg tau siv cov hlua khi rau kev kho kom zoo nkauj thiab kho kom zoo nkauj.Archaeologists pom ib nkawm khau tawv uas kwv yees li 5,500 xyoo nyob rau hauv ib lub qhov tsua nyob rau hauv toj siab ntawm Armenia, ib lub teb chaws Esxias Central.Qhov no yog cov khau tawv tawv uas tau pom ntev los txog tam sim no.Cov khau tawv zoo khaws cia yog dai kom zoo nkauj nrog cov khau khiab ntawm cov ntiv taw thiab pob taws.
Raws li lub npe implies, nws yog siv.Tab sis qhov no tsis yog ib txoj siv zoo tib yam, uas yog siv los khi rau sab hauv thiab sab nrauv ntawm nkawm khau, kho lub sab sauv, kho qhov nruj ntawm nkawm khau, thiab xyuas kom muaj kev nyab xeeb ntawm pob taws.Siv rau hauv txhua yam khau ncaws pob, xws li khau thiab hnav khau.Raws li cov ntaub ntawv keeb kwm, thaum ntxov li 5000 xyoo dhau los, tib neeg tau siv cov hlua khi rau kev kho kom zoo nkauj thiab kho kom zoo nkauj.Archaeologists pom ib nkawm khau tawv uas kwv yees li 5,500 xyoo nyob rau hauv ib lub qhov tsua nyob rau hauv toj siab ntawm Armenia, ib lub teb chaws Esxias Central.Qhov no yog cov khau tawv tawv uas tau pom ntev los txog tam sim no.Cov khau tawv zoo khaws cia yog dai kom zoo nkauj nrog cov khau khiab ntawm cov ntiv taw thiab pob taws.
Niaj hnub no, nyob rau hauv kev nrhiav ntawm tus kheej thiab zam, khau khiab tsis tsuas yog suav tias yog ib qho khoom siv.Nws kuj yog ib qho khoom siv zam, uas yog siv los ua kom sib txawv hnav khaub ncaws.Nws yog ib qho khoom siv tshiab los qhia tus cwj pwm ntawm kev hnav khau.Cov khau khiab hauv tsev yog ob npaug, meter (m) thiab centimeter (cm);Kev txiav txim txawv teb chaws yuav siv cov chav xws li yards (1 yard = 0.914 meters) thiab nti.Nws tau hais nyob rau hauv Suav teb tias "ntev ntev npaum li cas yog nkawm khau khiab".Cov lus hais yuav siv cov lus hais tias 1 meter them thiab 1 meter them.
Lub luag haujlwm tseem ceeb ntawm shoelaces yog kho qhov nruj ntawm nkawm khau.Vim tias qhov dav ntawm ko taw phaj thiab lub thickness ntawm ko taw nto yog tas li loj hlob thaum lub sij hawm loj hlob ntawm cov tub ntxhais hluas, nws yog ib qho tsim nyog yuav tsum cia cov taw muaj qhov chaw txaus los tsim los ntawm khau nrog khau khiab.Tsis tas li ntawd, cov ko taw nthuav dav nrog cov cua sov thiab kev cog lus nrog cov khaub thuas los ntawm tib neeg kev txav, yog li cov khau khiab kuj tau siv dav hauv cov khau kis las, tawm khau thiab kev tuav pov hwm kev ua haujlwm kom khaus khaus.Kev ua haujlwm ntawm kev kho kom zoo nkauj zam.Lub rigidity ntawm nkawm khau thiab softness ntawm shoelaces;Los ntawm kev sib sau ua ke ntawm shoelaces, khau tuaj yeem ua ntau yam sib txawv, zam thiab zoo nkauj.
Cov ntaub ntawv raw ntawm lub Hoobkas khau khau yog polyester, acrylic fiber, polyester paj rwb, thiab lwm yam. Tam sim no, cov khoom siv polyester feem ntau yog siv, uas yog pheej yig, muaj zog rub-tawm thiab kuj tiv taus av.Ua raws li polyester thiab paj rwb.Tom qab cov khau khiab tau muab tso rau, qhov chaw tsis zoo tuaj yeem hloov kho thiab txheeb xyuas kom zoo, thiab cov hlua khau ntxiv tuaj yeem khi thiab ntim rau hauv cov khau kab noj hniav nyob ib ncig ntawm tus nplaig.Tom qab hnav shoelaces, koj tuaj yeem pom tias muaj cov khau khiab ntxiv thiab cov hlua khau raug nthuav tawm.
Post lub sij hawm: Jun-19-2023