Cov duab ntawm qhov muaj peev xwm ua tau nkhaus (PPC) nthuav tawm cov ntaub ntawv tseem ceeb ntawm cov nqi sib tw hauv kev tsim ob yam khoom. … Thaum PPC yog concave (hneev tawm), cov nqi pheej hmoo nce thaum koj txav mus raws qhov nkhaus. Thaum PPC yog convex (hneev rau hauv), cov nqi hauv kev poob qis.
txhais li cas thaum PPC raug hneev tawm?
Lub hneev tawm ntawm PPC hauv daim duab 1 qhia tias muaj peev xwm nce nqi ntawm kev tsim khoom. Peb kuj tuaj yeem siv tus qauv PPC los qhia txog kev loj hlob ntawm kev lag luam, uas yog sawv cev los ntawm kev hloov pauv ntawm PPC.
Vim li cas PPC nkhaus sab nraud?
Vim qhov tseeb tias cov peev txheej tsawg, peb muaj kev txwv, uas yog qhov nkhaus qhia peb. Thaum kev lag luam loj hlob thiab tag nrho lwm yam tseem nyob tas li, peb tuaj yeem tsim tau ntau dua, yog li qhov no yuav ua rau muaj kev hloov pauv ntawm cov khoom tsim tau nkhaus sab nraud, lossis mus rau sab xis.
Vim li cas PPC thiaj li hneev tawm tsis yog txoj kab ncaj?
Nws ib txwm kos raws li txoj kab nkhaus thiab tsis yog txoj kab ncaj vim muaj tus nqi koom nrog kev xaiv xws li thaum qhov ntau ntawm ib qho khoom tsim tau siab dua thiab qhov ntau ntawm qhov qis. Qhov no yog lub npe hu ua nqi pheej yig.
Thaum qhov kev tsim muaj peev xwm nkhaus tau hneev tawm cov peev txheej yog?
Txoj kab nqes nqes ntawm qhov kev tsim muaj peev xwm nkhaus yog qhov cuam tshuam ntawm qhov tsis txaus. Lub hneev-tawm cov duab ntawm qhov tsim tau qhov nkhaus tau tshwm sim los ntawm kev faib cov peev txheej raws li kev sib piv kom zoo duaQhov kev faib tawm no txhais tau tias txoj cai ntawm kev nce nqi yuav tuav.
