Lub tswv yim ntawm kev muab khoom thiab kev xav tau nthuav tawm cov yam ntxwv tseem ceeb ntawm kev lag luam ua lag luam. Cov ntsiab lus ntawm kev xa khoom thiab kev thov yuav pab kom nkag siab txog cov txheej txheem ntawm kev tsim cov nqi hauv khw thiab kev siv khoom muag, nrog rau kev txiav txim siab cov qauv kev coj cwj pwm ntawm cov neeg yuav khoom thiab cov muag khoom hauv khw.
Cov Lus Qhia
Kauj ruam 1
Txhawm rau tsim cov nkhaus ntawm cov khoom siv thiab xav tau, nws yog qhov tsim nyog los txhais lub tswv yim ntawm kev thov. Kev thov yog qhov muaj siab thiab muaj peev xwm ntawm cov neeg yuav yuav ib qho khoom lossis kev pabcuam. Qhov kev thov nkhaus nce nyob rau ntawm tus nqi qis thiab poob ntawm tus nqi siab dua, yog li: tus nqi qis dua, ntau dua qhov kev thov. Yuav kom qhia txog qhov kev thov nkhaus rau ntawm ib daim ntawv, muaj kev sib koom tes ua ke. Txoj kab ntsug qhia tus nqi, kab rov tav qhia tau qhov ntau.
Kauj ruam 2
Qhov kev lees paub yog lub peev xwm thiab kev ntshaw ntawm tus muag khoom kom muab cov khoom lag luam lossis cov kev pab cuam ntawm lub khw. Cov kab lus nkhaus nce nrog qhov nce ntawm cov nqi ntawm cov khoom, vim li ntawd, cov nkhaus qis nrog qhov txo qis hauv tus nqi. Qhov sib koom ua ke axis raug npaj los sawv cev rau lub nkhaus xov rau ntawm daim ntawv tshiab. Kev tsim qauv ntawm cov kab ke sib raug zoo yog tib yam li hauv kev tsim kho ntawm qhov xav tau nkhaus.
Kauj ruam 3
Los ntawm superimposing cov khoom siv thiab thov nkhaus, koj tuaj yeem ua tibzoo saib kom paub tus nqi txheej txheem hauv khw. Kev sib luag yog tshwm sim nrog tib lub ntim ntawm qhov kev thov rau ib qho khoom thiab nws cov khoom hauv khw. S (txoj) kev nkhaus yog nkhaus xov, qhov D1 thiab D2 (thov) nkhaus yog qhov thov kev nkhaus.
Kauj ruam 4
Yog tias tus nqi pib teeb tsa siab dua P2 qib, tom qab ntawd qhov teeb meem no tau tshaj li qhov xav tau, thiab tom kawg, nyeg, yuav raug txo kom tsawg. Yog tias tus nqi pib ua qis dua P2, tom qab kev thov tus nqi ntau dua Q cov khoom thiab cov kev pabcuam nyob rau tom khw.
