于整个电压范围内扭矩固定。

Fixed torque throughout the entire voltage range.

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对所有标本进行压缩刚度，拉伸刚度，扭矩刚度，弯曲刚度等生物力学实验，观察不同固定方法的稳定性。

So, such biomechanical experiments as compression rigidity, tension rigidity, torsion rigidity, bending rigidity were carried out, and the steadiness of different fixation methods was observed.

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每种测试重复8次，通过MTS传感器记录外固定针各部位在不同轴向压力下所需扭矩、时间和位移。

Each testing were repeated 8 times, and the precise data (torque, time and displacement) of different group and different part were noted on the MTS sensor respectively.

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