Vim li cas thiaj muaj tsuas muaj ib sab nraub qaum?
Muaj cov ntaub ntawv scientific rau muaj ib lub nraub qaum pos huab, uas tau teeb tsa ntawm tus tsav tsheb sab, ua kom lub tsheb muaj kev nyab xeeb tsav. Raws li cov cai ntawm lub installation ntawm lub teeb taws teeb, thaum tsis muaj txoj cai rau kev teeb tsa ntawm cov txheej txheem huab. Yog tias muaj ib qho, cov hauv ntej huab yuav tsum yog ob. Txhawm rau tswj tus nqi, qee tus qauv tsawg kawg tuaj yeem thim rov qab ua ntej huab teeb thiab nruab tsuas yog ib sab pos teeb. Yog li ntawd, piv nrog ob lub cev ntoo nraub qaum, ib qho nraub qaum pos huab tuaj yeem txhim kho cov xim ntawm lub tsheb tom qab. Txoj haujlwm ntawm lub nraub qaum Pog pos huab yog qhov zoo heev rau ntawm lub teeb nres, uas yog qhov yooj yim kom tsis meej pem ob hom taws teeb thiab ua rau muaj kev nyab xeeb. Yog li ntawd, tsuas yog ib qho pos huab yog qhov ua tau zoo dua ntawm kev nyab xeeb ntawm lub tsheb.
