This paper presents an approach for three-dimensional motion measurement and analysis by applying the electric measuring technique and the kinematic principles of rigid body.
本文应用电测技术和刚体运动学原理，提出了一个三维运动测量和计算方法。
Methods a device that measures the three-dimensional motion and stiffness of the cervical spine in vivo was designed according to 3-dimensional 6-degree of freedom motion principle of spine.
方法：根据脊柱3轴6自由度运动原理，制作活体颈椎三维运动和刚度测试装置。
Objective To study the effect of the expansive open-door laminoplasty on the three-dimensional motion and stiffness of the cervical spine.
目的研究颈椎后路单开门椎管扩大成形术对颈椎三维运动及刚性的影响。
By controling the three-dimensional motion of the X-Y table and bond head, precision positioning and desired line-type gold wires can be realized, and an ultrasonic wave bonded method is used.
工作原理是通过X-Y工作台和焊头的三维运动控制，定位并拉出设定的金丝线型，采用超声波热压球焊方法焊接芯片管脚。
This dissertation thoroughly explains the mechanical design of the platform, including the energy system, three-dimensional motion system, feeder system and elevating system.
论文详细叙述了机械系统平台的机构设计。机械系统主要包括能量系统、三坐标运动系统、铺粉系统和升降系统。
This dissertation thoroughly explains the mechanical design of the platform, including the energy system, three-dimensional motion system, feeder system and elevating system.
论文详细叙述了机械系统平台的机构设计。机械系统主要包括能量系统、三坐标运动系统、铺粉系统和升降系统。
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