Ua tib zoo saib cov ntsiab lus no thaum xaiv lub hnab ntawv rau koj tus menyuam, yog li koj tuaj yeem xaiv lub hnab ntawv haum rau koj tus menyuam.
1. Cov ntaub ntawv ntawm lub hnab ntawv
Lub hnab kawm ntawv thiab tus menyuam nyob ze, thiab cov khoom siv yuav tsum muaj kev nyab xeeb thiab tsis muaj ntxhiab. Qhov no yuav tsum yog qhov tseem ceeb tshaj plaws, tom qab tag nrho, kev noj qab haus huv yog thawj.
2. Nyhav ntawm schoolbag
Qhov tseeb, tsis muaj dab tsi hais txog yam khoom no. Lub teb chaws muaj bar. Tsuav tus kheej qhov hnyav ntawm lub hnab ntawv tsis pub dhau 1KG thiab qhov hnyav ntawm tus menyuam tsis tshaj 15 feem pua ntawm tus menyuam qhov hnyav tom qab phau ntawv thiab cov ntawv sau tau thauj khoom, qhov no yog cov khoom tsim nyog. Tau kawg, qhov sib dua qhov zoo dua. Ib lub hnab kawm ntawv sib dua tsis muaj lub luag haujlwm nqa. Feem ntau hais lus, nws yog nruab nrab ntawm 700g thiab 1000g.
3. Tsim lub hnab kawm ntawv
Rau cov menyuam yaus lub hnab kawm ntawv, cov qauv tsim yuav nruj dua. Cov menyuam yaus nyob rau theem ntawm kev loj hlob. Ib qho kev tsim kho tsis zoo yuav cuam tshuam rau lawv txoj kev loj hlob thiab kev loj hlob. Nyob rau hauv tus txheej txheem ntawm cov me nyuam txoj kev loj hlob, lub hnab ev ntawv nrog kev tiv thaiv qaum yuav tsum tau xaiv. Lub xub pwg hnab ib leeg tsis haum rau cov menyuam yaus hauv kev loj hlob thiab kev loj hlob. Thiab thaum xaiv lub hnab ev ntawv, sim xaiv lub xub pwg dav dav.
4. Lub hnab kawm ntawv yuav tsum muaj cov cim qhia
Cov tub ntxhais kawm feem ntau yuav muaj xwm txheej ntawm lawv txoj kev mus thiab los ntawm tsev kawm ntawv. Yog li ntawd, peb yuav tsum xav txog kev nyab xeeb ntawm cov menyuam yaus kom ntau li ntau tau hauv kev tsim cov hnab tsev kawm ntawv. Reflective stickers yog ib qho kev xaiv zoo.
5. Cov txheej txheem sab hauv ntawm lub hnab kawm ntawv yog qhov tsim nyog
Tom qab kawm ntawv, kuv kawm siv ntau yam ntxiv. Classification thiab layering schoolbags yog qhov tsim nyog heev rau cov menyuam yaus los tsim tus cwj pwm zoo ntawm kev faib tawm, thiab tseem tuaj yeem txuag lub sijhawm hauv kev siv txhua hnub.
