Cov txiaj ntsig ntawm Muab Kauv Kev Nyab Xeeb.

Cov kauj kauv tau tuav cov nplooj ntawv thiab npog ua ib qho kev sib dhos tseem tuaj yeem cia lawv qhib ywj pheej. Qhov tseeb, ib qho ntawm cov neeg siv thawj cov txiaj ntsig ntawm phau ntawv kauv-tau tshaj yog tias cov nplooj ntawv tuaj yeem qhib tag nrho 360 degrees (npog kom npog). Qhov no tso cai rau phau ntawv qhib kom tig rov qab thaum nws tus kheej thiab tseem tseem nyob tiaj tus, yog li nws nyob qis qis rau kev siv yooj yim thiab tseem siv sijhawm tsawg chav ntawm lub rooj lossis rooj. Cov yeeb yam no ua rau kauv los ua qhov kev xaiv zoo tshaj plaws rau cov ntawv tshaj tawm, nthuav qhia kev muag khoom, tawm tswv yim, phau ntawv qhia, chav ua noj, phau ntawv qhia, thiab phau ntawv qhia kev saib xyuas. Atlases thiab cov lus qhia kev taug kev kuj tseem muaj ntau kauv vim tias lawv yooj yim rau kev tswj thaum mus ncig. Thiab vim tias lawv muaj peev xwm qhib tag nrho, nws tiv thaiv cov ntaub ntawv tsis txhob faus ze rau hauv phau ntawv txha nraub qaum.