Lub hnab tuj yog cov khoom lag luam ntawm kev sib raug zoo, uas tuaj yeem tsis tsuas yog ua lub luag haujlwm ntawm cov khoom ntim khoom, tab sis kuj xa cov ntaub ntawv ntawm cov khoom. Tus nqi ntawm cov khoom ntim yog loj heev. Ntau yam yuav tsum tau them sai sai rau thaum tsim khoom. Cia peb saib nws cov ntsiab lus ntsig txog.
Thaum tsim lub hnab ntim, xyuam xim rau cov cim lag luam thiab cov khoom lag luam ntawm lub hnab, uas yog ib feem tseem ceeb ntawm kev ntim khoom thiab yuav tsum tuav lub luag haujlwm tseem ceeb hauv kev ntim tag nrho, thiab txoj haujlwm yuav tsum yog qhov muag pom; xim ntawm lub hnab ntim khoom yuav tsum tau ua raws li qhov xav tau ntawm cov neeg siv khoom. , Cov xim yog tus nqi sib piv hauv lub ntim. Cov xim highlights cov yam ntxwv ntawm cov khoom thiab kuj yog heev txaus nyiam rau cov neeg muas zaub.
Cov qauv ntawm lub hnab ntim khoom tuaj yeem tsim tau raws li qhov xav tau ntawm cov neeg siv khoom lossis cov qauv tsim, uas zoo ib yam li daim duab hauv kev tshaj tawm, thiab tseem yog ib feem tseem ceeb heev; cov duab ntawm lub hnab ntim khoom yog qhov tsim nyog rau kev thauj mus los ntawm cov khoom, thiab cov duab kuj yog qhov tseem ceeb dua.
Lub flatness ntawm lub hnab tuj yog zoo dua. Txhawm rau kov yeej qhov tsis xws luag ntawm lub hnab ntim yas dav dav, lub tiaj tiaj yog qhov zoo, thiab cov nyhuv luam ntawv kuj zoo heev. Kev txhim kho tuaj yeem ua rau ntau yam. Tus naj npawb ntawm cov hniav ntawm lub iav lub cev muaj zog thiab lub iav lub cev muaj zog yog nce thaum lub sij hawm tsim khoom, thiab cov ntaub qhwv lub zog yuav tsum tau nce ntxiv kom ruaj khov ntawm cov ntaub ntawv reel, thiab lwm yam.