加载单元，不仅能实现功率回收，还可通过预建压的方法，实现理想的恒扭矩加载。
The loading unit realized the recycle of power as well as the perfect loading for constant torque by means of setting up pressure in advance.
并根据不同工况对这3种模型施加相应的预载荷及扭矩，分析比较不同腰椎轴向运动时相邻节段椎间盘应力的变化情况。
Corresponding load and torque were applied on the 3 different models according to different conditions to obtain the stress changes of the intervertebral disc that happened to the adjacent segments.
大六角头高强度螺栓连接副扭矩系数的检测，扭剪型高强度螺栓连接副坚固预拉力的检测，高强度螺栓连接磨擦面抗滑移系数的检测，是钢结构材料验收中的重要测量。
To determine the anti-slip coefficient of the high-strength bolt which connects components of friction surface, it is screwed and determined by torsion and tensile testing machines respectively.
大六角头高强度螺栓连接副扭矩系数的检测，扭剪型高强度螺栓连接副坚固预拉力的检测，高强度螺栓连接磨擦面抗滑移系数的检测，是钢结构材料验收中的重要测量。
To determine the anti-slip coefficient of the high-strength bolt which connects components of friction surface, it is screwed and determined by torsion and tensile testing machines respectively.
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