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The representative figures for Biomechanical experiment. Universal material testing machine (2500 N, Zwick, Germany) was used in this study for loading exposure and the displacement of the middle vertebral segment was measured using KG-digital grating high precision micrometer. (A) displacement-stiffness test; (B) torsion test; (C)pullout strength test
126x116mm (72 x 72 DPI)
