The defects and uneven force subjecting condition of the structural design may cause the deformation and damage of the unit frames, resulting in dropping and damaging of the instruments.
结构设计的缺陷和不均衡受力状况都可能导致仪器房框架结构的变形甚至损毁，导致仪器设备脱落或损坏。
2
A concept of "damaging circumstances" is put forward and it is considered that such damaging circumstances are just the causes of the plastic deformation of the frame.