Thaum cov kws ua choj thiab cov neeg yuav khoom teev cov cuab yeej siv DIN 333, ib qho ntawm cov lus nug feem ntau uas peb tau txais yog: "Qhov txawv ntawm Hom A thiab Hom B yog dab tsi - thiab kuv xav tau qhov twg tiag?" Nws yog ib lo lus nug ncaj ncees. Ob hom sib koom tib lub kaum sab xis 60 °, ua raws li s...
Kev Taw Qhia Hauv kev tsim hlau thiab kev khawb hauv kev lag luam, lub neej ntawm cov cuab yeej thiab tus nqi yuav khoom yog ob qho tseem ceeb tshaj plaws rau cov neeg yuav khoom. Cov ntsis laum ob sab - tseem hu ua cov ntsis laum uas tig tau lossis cov ntsis laum ob sab - muab...