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1·Several methods are presented for calculating the prying force.

考虑到撬力的作用，各种设计方法被提出来。

2·The acting force of prying and pressing marks is leverage effect which is different from that of hitting marks, impact effect.

撬压痕迹与打击痕迹的作用力形式不同，分别是杠杆作用和碰撞作用。