Rau feem ntau cov menyuam yaus, kev kos duab yog qhov lawv nyiam nyiam tshaj plaws. Thiab, qhov tseeb, cov xaum xaum yog cov khoom siv nrov tshaj plaws rau me nyuam kev tsim txuj ci. Nrog lawv pab, cov menyuam tsim kom tau cov tswv yim zoo. Txawm li cas los xij, thiaj li rau cov txheej txheem ntawm kev kos duab los ua kom tus menyuam muaj kev zoo siab tiag tiag, thiab cov txiaj ntsig ntawm kev tsim muaj yeej ib txwm yog qhov qub thiab ci, nws yog qhov tsim nyog los xaiv thiab yuav cov xaum xim tiag tiag rau cov kws kos duab me.
Cas xaum xaum xaum los yuav
Tsis yog txhua txhua cov xaum xaum yuav tsum yog xim zoo tiag tiag. Qee qhov ntawm lawv tuab heev thiab tsis xis nyob, lwm tus pleev xim faded, tab sis tseem muaj lwm tus xav tau kev tu ntse tas li.
Vim li cas nws thiaj tseem ceeb xaiv cov mem hluav xim zoo zoo rau koj tus menyuam? Qhov tseeb, txhua yam yog yooj yim heev. Cov chaw lag luam ntawm cov khw muag khoom niaj hnub muag cov ntawv sau tau yog yooj yim nrog txhua hom kev teeb tsa ntawm cov xaum xaum xaum los ntawm cov chaw tsim khoom sib txawv, cov hom, ntau yam thiab cov duab ntxoo. Nws tsuas yog yooj yim sua kom tsis txhob ploj thiab tsis tau txais kev ntseeg siab nyob hauv txhua qhov kev sib txawv no. Siv koj lub sijhawm nrog txoj kev yuav khoom, ua tib zoo kawm tag nrho cov lus nthuav tawm thiab xaiv cov xaum xaum xim zoo tshaj plaws thiab zoo tshaj plaws.
Rau cov menyuam yaus uas nyuam qhuav pib kawm qhov pib ntawm qhov kev coj ua zoo nkauj, xaum nrog lub cev voos yog qhov tsim nyog tshaj plaws. Lawv yuav pab koj tus me nyuam kawm paub sai li sai tau tso tus ntiv tes thaum kos duab, tsis txhob zawm xaum ntawm qhov nrig, zoo li cov menyuam me ua ntej hnub nyoog peb xyoos. Tsis tas li ntawd, daim duab peb sab xim xaum xaim tsis yob lub rooj thaum lub sijhawm kos duab thiab tso cai rau cov tub ntxhais hluas kos duab tsom tshwj xeeb rau kev tsim tswv yim, yam tsis muaj dab tsi cuam tshuam nws los ntawm kev khoov thiab tshawb cov xaum xim dawb lias hauv qab rooj.
Yog tias tsis muaj cov ntawv muaj xim voos hauv cov khw muag khoom, koj tuaj yeem yuav cov khoom siv kos duab nrog rau 6 qhov sib txawv. Tab sis nws yog qhov zoo dua rau tsis kam yuav cov xaum xaum xaum nrog ib puag ncig hla-ntu. Lawv tsuas yog tsim rau cov menyuam yaus nrog qhov tseeb tuav ntawm xaum twb tau tsim.
Thaum xaiv cov xaum xaum xim, them sai sai rau lawv cov tuab. Nws yooj yim dua rau cov menyuam yaus hnub nyoog qis dua peb xyoos kos nrog xaum nrog lub cev ntoo tuab, txoj kab uas hla yog kwv yees li ib centimeter. Xws li cov cuab yeej yuav zaum ruaj ruaj rau ntawm tus menyuam cov ntiv tes thiab yuav tsis tsoo yog tias zawm heev.
Muab qhov nyiam ua rau cov xaum qhuav muag muag. Firstly, nws yooj yim dua rau kos nrog lawv dua nrog cov tawv. Qhov thib ob, cov xim xaum qhuav muag xim tsim cov qauv tsim ci ntsa iab. Thiab, thib peb, lub crumb tsis tas yuav tsum nias tus xaum qhuav kom thiaj li kos tau dab tsi xeeb.
Sab saum toj Cov Xim Caj Mem Tes Ua Lag Luam
Cov ntoo tsis zoo thiab cov xim tsis zoo hauv cov lus sib xyaw xim xim tuaj yeem tshwm sim los ntawm kev sib tawg, faded kos duab, puas tsuaj rau daim ntawv kos duab, thiab tseem ceeb tshaj, tus me nyuam lub siab tsis zoo.
Thaum xaiv cov xaum qhuav xim, tsis txhob mus rau qhov tsim pheej yig tshaj. Nws yog qhov zoo dua los muab kev nyiam rau cov khoom lag luam los ntawm cov tuam txhab ntseeg siab uas tau ua pov thawj lawv tus kheej nyob rau hauv kev lag luam ntawv sau niaj hnub thiab tau txais ntau cov kev txheeb xyuas zoo los ntawm cov neeg siv khoom txaus siab.
Cov chaw tsim khoom lag luam zoo tshaj plaws ntawm cov xaum xim yog: KOH-I-NOOR, JOVI, Crayola, SILWERHOF, nrog rau Siberian Pencil Factory, uas tsim cov xaum xaum ntawm Lavxias Pencil thiab Siberian Cedar series.
