Kev ua tau zoo:
Qhov tseem ceeb txo qis inertia rotational, ua rau kom nrawm nrawm dua, braking zoo dua, thiab cov lus teb nrawm dua.
Kev ua tau zoo:
Qhov tseem ceeb txo qis inertia rotational, ua rau kom nrawm nrawm dua, braking zoo dua, thiab cov lus teb nrawm dua.
Xa kev nug