Thib peb: Kev xaiv ntawm qhov chaw nres nkoj kua nplaum. Feem ntau, cov khoom no yuav siv ntau txoj kab noj hniav tsim qauv. Cov pwm txais cov neeg tuaj txawv teb chaws kub khiav kom tig latent kua nplaum. Vim tias cov kua nplaum lub qhov ncauj nyob ntawm qhov chaw inclined, nws yooj yim los rub lub qhov ncauj. Lub sijhawm no, cov kua nplaum latent yog EDM yog qhov tseem ceeb tshwj xeeb, thiab qhov sib txawv ntawm qhov sib txawv yuav tsum tsis pub dhau 0.01 ntau li ntau tau.