The machine is made from steel.It's vibration treated roil to reduce internal stress. 本機械為鋼板結構,經振動時效消除內應力。
For the complete specification of the stress in a body it is necessary to know the stress components at each point of it. 對於物體內應力的完全說明,則必須要知道物體內每一點上的分應力。