Cov khoom siv ntawm cov khoom siv xa mus rau cov yam ntxwv ntawm cov khoom siv nyob rau hauv ib puag ncig sib txawv (kub, av noo, nruab nrab), nyob rau hauv ntau yam khoom siv sab nraud (tensile, compression, bending, torsion, impact, alternating stress, etc.). Cov khoom siv mechanical proper...
Nyeem ntxiv