Dab tsi yog qhov chaw khawm lub hnab ntim khoom?

1. Ntawm cov khoom muag ntawm tes: Peb lav tias muaj cov khoom muag ntawm tes rau lub sijhawm ntev, thiab cov khoom yuav xa tuaj rau tib hnub lossis hnub tom qab. Piv txwv li, tooj liab snap fastener (tsis muaj Lakh, tsis Lakh), tooj liab snap fastener (tsis yog Lakh, tsis Lakh).

2. Ordinary tawm ntawm lub txee: Feem ntau, cov no yog cov hnab ntim cov khawm xaj los ntawm lub tuam txhab rau lwm hom thiab cov neeg siv khoom hauv tsev thiab txawv teb chaws. Qhov feem ntau ntawm cov khoom tsim tawm ntau tshaj li cov neeg siv khoom xav tau (tshwj tsis yog cov uas muaj cov neeg siv khoom lag luam thiab cov neeg siv khoom muaj cai siv), uas raug xa mus rau tib hnub lossis hnub tom qab. Cov khoom lag luam zoo li no tau tsim los ntawm lub tuam txhab tau ntau xyoo, yog li muaj ntau ntau yam thiab xim, tab sis tus naj npawb yog txwv. Qee qhov tuaj yeem kho tau thiab qee qhov tsis tuaj yeem hloov kho (tshwj tsis yog cov ntaub uas cov neeg siv khoom tuaj yeem muab lawv tus kheej).