The impactforce is applied by a falling steel ball instead of the spring hammer (USA).
用一个跌落的钢球而不是用弹簧冲击器来施加冲击力(美国)。
2
Right inverse pendulum by the body clockwise rotation of the force, can cause great impactforce.
右反摆借身体顺时针旋转的力量，可以造成极大的冲击力。
3
Objective to evaluate the relation between impact parameters and impactforce, so as to provide theoretical basis for damage mechanism and medical protection.