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本文把散焦散斑法和全息干涉法用于薄膜比拟,由此得到了自由扭杆横截面上的剪应力值及其方向.
In this paper, the defocused speckle method and the holographic interferometry method are used to compare the films, and the shear stress value and direction of the free torsion bar cross section are obtained.