Txawm li cas los xij, cov no tsis txaus. Txog kev ua kom yooj yim ntim hnab ntim khoom lag luam, kev tswj hwm kev tswj hwm seb puas tsim cov ntawv sau uas tsim nyog rau cov txheej txheem luam ntawv, kev sib txuam, pob zom, lub hnab ua cov txheej txheem; cawv ntawm txheej txheem tom qab tsim tawm ntawm luam ntawv xim; txheej txheem luam tawm Xim kev luam tawm ntawm cov qauv tsim; seb cov ntawv luam tawm uas haum rau phaj ua, qhov kev cai dav dav yuav tsum yog cov qauv zoo nkauj, kev lag luam yooj yim thiab tsim nyog, thiab yooj yim rau kev tsim khoom.
Hauv cov ntsiab lus, kev tshuaj xyuas cov ntawv sau yog qhov tseem ceeb ntawm cov txheej txheem ntim khoom ntim kom ntim khoom tau yooj yim, thiab yog qhov txuas ywj siab hauv tag nrho cov txheej txheem ntau lawm. Los ntawm kev tshuaj xyuas cov ntawv sau, cov txheej txheem kev tshuaj xyuas thiab cov txheej txheem tshuaj xyuas cov ntawv luam tawm cov qauv, thiab cov ntawv luam tawm tsim nyog raws li tus neeg siv' s kev xav tau, kev tsim cov txheej txheem, thiab cov phaj ua yuav tsum tau, tuaj yeem ua cov khoom lag luam txuas ntxiv mus kom zoo. Cov. Kev tshuaj xyuas cov ntawv sau tau ua kev sib txuas ntawm cov neeg tsim khoom ntim, ntim cov chaw tsim khoom, thiab cov chaw tsim khoom phaj.
